CN214543965U

CN214543965U - Generator capable of preventing rotor from being scratched

Info

Publication number: CN214543965U
Application number: CN202120417298.1U
Authority: CN
Inventors: 吴晓峰
Original assignee: Jinhua Jiexin Intelligent Technology Co ltd
Current assignee: Jinhua Jiexin Intelligent Technology Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-10-29
Anticipated expiration: 2031-02-25

Abstract

The utility model discloses a generator capable of preventing a rotor from being scratched. It includes casing, stator, rotor and flywheel dish, the stator is fixed on the casing inner wall, the rotor is located the stator inboard, the flywheel dish cover is established in the rotor rear end outside, the casing front end is equipped with the apron, the apron rear side is equipped with the back shaft that stretches into in the casing, the rotor front end is established in the back shaft outside through first bearing housing, the casing rear end is equipped with the end cover, the end cover is established in the rotor rear end outside through the second bearing housing, the end cover is located the flywheel dish front side. The utility model discloses a two bearings carry on spacingly to the rotor around to prevent effectively that the rotor from producing radial flexible when high-speed rotation from moving.

Description

Generator capable of preventing rotor from being scratched

Technical Field

The utility model relates to a generator technical field especially relates to a can prevent that rotor from scratching generator that moves.

Background

The generator is a mechanical device which converts energy in other forms into electric energy, and generally comprises a shell, a stator and a rotor, wherein the stator and the rotor are connected and assembled by the shell, a crankshaft of the engine drives the rotor of the generator to rotate in the stator and do movement of cutting magnetic lines of force, so that induced potential is generated, and the induced potential is led out through a connecting terminal and is connected in a loop to generate current. Because the rotor of the generator is large in size and weight, the rotor is easy to generate radial deflection during high-speed rotation, a crankshaft is easy to bend, a bearing of the engine is damaged, the stator and the rotor are easy to rub with each other, and a motor is damaged.

Disclosure of Invention

The utility model provides a solve above-mentioned technical problem, provide a can prevent that rotor from scratching generator that moves, it carries on spacingly through two bearings around through to the rotor to prevent effectively that the rotor from producing radially scratching when high-speed rotating and moving.

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

the utility model discloses a can prevent that rotor from scratching generator that moves, including casing, stator, rotor and flywheel dish, the stator is fixed on the casing inner wall, the rotor is located the stator inboard, the flywheel dish cover is established in the rotor rear end outside, the casing front end is equipped with the apron, the apron rear side is equipped with the back shaft that stretches into in the casing, the rotor front end is established in the back shaft outside through first bearing housing, the casing rear end is equipped with the end cover, the end cover passes through the second bearing housing and establishes in the rotor rear end outside, the end cover is located flywheel dish front side.

In the scheme, when the generator works, a crankshaft of the engine is connected with the rear end of the rotor and the flywheel disc, the crankshaft, the rotor and the flywheel disc synchronously rotate, and the rotor rotates in the stator to do motion for cutting magnetic lines of force to generate electricity.

The front end of the rotor is sleeved on the supporting shaft, the front end of the rotor is connected with the supporting shaft through the first bearing, the end cover is sleeved at the rear end of the rotor, and the end cover is connected with the rear end of the rotor through the second bearing.

Preferably, the inner side of the end cover is provided with a retaining ring for limiting the second bearing to move backwards, the front side of the end cover is provided with a bearing cover plate for limiting the second bearing to move forwards, the bearing cover plate is sleeved on the outer side of the rear end of the rotor and is fixedly connected with the end cover, and the rear end of the rotor is provided with an annular stop block which is abutted against the front side face of the second bearing. The bearing cover plate fixes the second bearing on the end cover.

Preferably, the front end of the rotor is provided with a groove for accommodating the first bearing, the front side of the rotor is provided with a limiting plate for limiting the first bearing in the groove, the limiting plate is fixedly connected with the rotor, and the limiting plate is provided with a first through hole for allowing the supporting shaft to pass through.

Preferably, the support shaft is provided with a second through hole arranged along the axial direction.

Preferably, the generator capable of preventing the rotor from being scratched further comprises a supporting block, an installation ring is sleeved on the outer side of the supporting block, the rear end of the supporting block extends into the front end of the second through hole, and the installation ring is fixedly connected with the cover plate.

Preferably, the front end of the supporting block is provided with a threaded hole.

Preferably, the generator capable of preventing the rotor from being scratched further comprises a flywheel housing, the flywheel housing is located on the rear side of the end cover and fixedly connected with the end cover, and the flywheel disc is located in the flywheel housing.

Preferably, the cover plate is provided with a junction box, a wire holder is arranged in the junction box, and the wire holder is electrically connected with the stator.

Preferably, the cover plate is also provided with two water pipe connectors, and the water pipe connectors are communicated with a water cooling mechanism in the shell.

The utility model has the advantages that: the radial deflection of the rotor during high-speed rotation can be effectively prevented, the bent crankshaft is prevented from damaging an engine bearing, and the stator and the rotor are prevented from rubbing against each other to damage a motor.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is an exploded view of the embodiment.

In the figure: 1. casing, 2, stator, 3, rotor, 4, flywheel dish, 5, apron, 6, back shaft, 7, first bearing, 8, second bearing, 9, end cover, 10, retaining ring, 11, bearing cover plate, 12, annular dog, 13, limiting plate, 14, first through-hole, 15, second through-hole, 16, supporting shoe, 17, collar, 18, screw hole, 19, flywheel shell, 20, terminal box, 21, connection terminal, 22, water pipe head.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): the utility model provides a generator that can prevent rotor from scratching, as shown in figure 1, figure 2, figure 3, figure 4 shows, including casing 1, stator 2, rotor 3 and flywheel dish 4, stator 2 fixes on the casing 1 inner wall, rotor 3 is located 2 inboards of stator, flywheel dish 4 covers is established in the 3 rear end outsides of rotor, casing 1 front end is equipped with apron 5, apron 5 rear sides are equipped with the back shaft 6 that stretches into

casing

1, 3 front ends of rotor are established in the 6 outsides of back shaft through first bearing 7 cover, casing 1 rear end is equipped with end cover 9, end cover 9 overlaps through second bearing 8 and is established in the 3 rear end outsides of rotor, end cover 9 is located flywheel dish 4 front sides.

The inner side of the end cover 9 is provided with a retainer ring 10 for limiting the backward movement of the second bearing 8, the front side of the end cover 9 is provided with a bearing cover plate 11 for limiting the forward movement of the second bearing 8, the bearing cover plate 11 is sleeved on the outer side of the rear end of the rotor 3 and is fixedly connected with the end cover 9, the rear end of the rotor 3 is provided with an annular stop block 12 which is abutted against the front side surface of the second bearing 8, and the bearing cover plate fixes the second bearing on the end cover.

Rotor 3 front end is equipped with the recess that is used for holding first bearing 7, and 3 front sides of rotor are equipped with and are used for limiting the limiting plate 13 of first bearing 7 in the recess, limiting plate 13 and rotor 3 fixed connection are equipped with the first through-hole 14 that supplies back shaft 6 to pass on the limiting plate 13, are equipped with on the back shaft 6 along the second through-hole 15 of axial setting.

The generator further comprises a supporting block 16, a mounting ring 17 is sleeved on the outer side of the supporting block 16, the rear end of the supporting block 16 extends into the front end of the second through hole 15, the mounting ring 17 is fixedly connected with the cover plate 5, and a threaded hole 18 is formed in the front end of the supporting block 16. The generator further comprises a flywheel shell 19, the flywheel shell 19 is located on the rear side of the end cover 9 and fixedly connected with the end cover 9, the flywheel disc 4 is located in the flywheel shell 19, the cover plate 5 is provided with a junction box 20, a wiring seat 21 is arranged in the junction box 20, and the wiring seat 21 is electrically connected with the stator 2. Two water pipe connectors 22 are also arranged on the cover plate 5, and the water pipe connectors 22 are communicated with a water cooling mechanism in the machine shell 1.

In the scheme, when the synchronous generator works, a crankshaft of the engine is fixedly connected with the rear end of the rotor and the flywheel disc, the crankshaft, the rotor and the flywheel disc synchronously rotate, and the rotor rotates in the stator to generate electricity by cutting magnetic lines of force.

Claims

1. The utility model provides a can prevent generator that rotor was scratched, includes casing (1), stator (2), rotor (3) and flywheel dish (4), stator (2) are fixed on casing (1) inner wall, rotor (3) are located stator (2) inboard, the rotor (3) rear end outside is established to flywheel dish (4) cover, a serial communication port, casing (1) front end is equipped with apron (5), apron (5) rear side is equipped with back shaft (6) that stretch into casing (1), rotor (3) front end is established in back shaft (6) outside through first bearing (7) cover, casing (1) rear end is equipped with end cover (9), end cover (9) are established in the rotor (3) rear end outside through second bearing (8) cover, end cover (9) are located flywheel dish (4) front side.

2. The generator capable of preventing the rotor from being scratched according to claim 1, wherein a retainer ring (10) for limiting the backward movement of the second bearing (8) is disposed on an inner side of the end cover (9), a bearing cover plate (11) for limiting the forward movement of the second bearing (8) is disposed on a front side of the end cover (9), the bearing cover plate (11) is sleeved on an outer side of a rear end of the rotor (3) and is fixedly connected with the end cover (9), and an annular stopper (12) abutting against a front side surface of the second bearing (8) is disposed on the rear end of the rotor (3).

3. The generator capable of preventing the rotor from being warped according to claim 1, wherein a groove for accommodating the first bearing (7) is formed in the front end of the rotor (3), a limiting plate (13) for limiting the first bearing (7) in the groove is arranged on the front side of the rotor (3), the limiting plate (13) is fixedly connected with the rotor (3), and a first through hole (14) for the support shaft (6) to pass through is formed in the limiting plate (13).

4. A generator according to claim 1, 2 or 3, wherein the support shaft (6) is provided with a second through hole (15) arranged along the axial direction.

5. The generator capable of preventing the rotor from being scratched according to claim 4, further comprising a supporting block (16), wherein an installation ring (17) is sleeved outside the supporting block (16), the rear end of the supporting block (16) extends into the front end of the second through hole (15), and the installation ring (17) is fixedly connected with the cover plate (5).

6. A generator according to claim 5, wherein the support block (16) is provided with a threaded hole (18) at the front end.

7. A generator according to claim 1, 2 or 3, further comprising a flywheel housing (19), wherein the flywheel housing (19) is located at the rear side of the end cover (9) and is fixedly connected with the end cover (9), and the flywheel disc (4) is located in the flywheel housing (19).

8. A generator according to claim 1, 2 or 3, wherein the cover plate (5) is provided with a terminal box (20), the terminal box (20) is provided with a terminal base (21), and the terminal base (21) is electrically connected with the stator (2).

9. A generator according to claim 1, 2 or 3, wherein the cover plate (5) is further provided with two water pipe joints (22), and the water pipe joints (22) are communicated with a water cooling mechanism in the casing (1).