CN216981671U

CN216981671U - Generator structure

Info

Publication number: CN216981671U
Application number: CN202123421594.8U
Authority: CN
Inventors: 符春飞; 曹轶昆; 翟煜
Original assignee: WUHU GENERATOR AUTOMOTIVE ELECTRICAL SYSTEMS CO Ltd
Current assignee: WUHU GENERATOR AUTOMOTIVE ELECTRICAL SYSTEMS CO Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-15
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a generator structure applied to the technical field of generators. The generator structure include front end housing (1) and bearing (2), be equipped with bearing room (14) on front end housing (1), install bearing (2) in bearing room (14), bearing (2) support pivot (9), set up outside recess (4) on the outer terminal surface of front end housing (1), protective part (12) are installed on pivot (9), set up outside boss (5) that correspond with outside recess (4) shape and position on protective part (12), outside recess (4) and outside boss (5) set up to clearance fit. The generator structure provided by the utility model is simple in structure, provides a good sealing effect for the generator end cover bearing under the condition of not increasing the cost, effectively avoids foreign matters from entering, is easy to produce and manufacture, improves the performance and service life of the generator, reduces the failure rate of the bearing, and reduces the maintenance cost.

Description

Generator structure

Technical Field

The utility model belongs to the technical field of automobile parts, and particularly relates to a generator structure.

Background

At present, the main function of a generator bearing is to provide rotary support for a generator, and in the operation process, the generator does not allow foreign matters to enter the interior of the bearing (the foreign matters enter the bearing to cause grease pollution, and the bearing fails early) due to the function and the working principle of the generator. The scheme of relying on the bearing self among the prior art, the protective effect is limited. In the mud wading application of engineering machinery and the like, a bearing is isolated from a connecting piece thereof by additionally adding a protective part, such as an independent sealing bearing. The structure is complex, the cost is high, and the stability is general due to the high-speed running characteristic of the bearing.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the generator structure is simple in structure, provides a good sealing effect for the generator end cover bearing under the condition of not increasing the cost, effectively avoids foreign matters from entering, is easy to produce and manufacture, improves the performance and the service life of a generator, reduces the failure rate of the bearing and reduces the maintenance cost.

To solve the technical problems, the utility model adopts the technical scheme that:

the utility model relates to a generator structure which comprises a front end cover and a bearing, wherein a bearing chamber is arranged on the front end cover, the bearing is arranged in the bearing chamber, the bearing supports a rotating shaft, an external groove is formed in the outer end surface of the front end cover, a protection part is arranged on the rotating shaft, an external boss corresponding to the shape and the position of the external groove is arranged on the protection part, and the external groove and the external boss are in clearance fit.

The outer groove is disposed at a periphery of the bearing chamber.

The protective component is a belt wheel, and one side of the belt wheel, which is close to the front end cover, is provided with an external boss corresponding to the shape and the position of the external groove of the front end cover.

The protective component is a sealing baffle, and one side of the sealing baffle, which is close to the front end cover, is provided with an external boss corresponding to the shape and the position of the external groove.

When the front end cover, the bearing and the belt wheel are connected, the external boss on the belt wheel is of a structure capable of extending into the external groove of the bearing.

When the front end cover, the bearing and the sealing baffle are connected, the external boss on the sealing baffle is set to be a structure capable of extending into the external groove.

The inner side of the front end cover is provided with an inner groove along the position of the outer ring of the bearing, a rotor gasket is arranged on the rotating shaft, and a rotor boss corresponding to the shape and the position of the inner groove is arranged on one side of the front end cover, which is attached to the rotor gasket.

The rotating shaft is provided with an installation groove along the circumference of the rotating shaft, and the bearing is of a structure capable of being clamped in the installation groove.

The rotor gasket is fixedly connected with the rotating shaft in a straight grain press fitting mode.

And a sealing ring is arranged in the outer groove and/or the inner groove.

The generator structure is applied to automobiles.

By adopting the technical scheme of the utility model, the following beneficial effects can be obtained:

the utility model provides an improved technical scheme aiming at the defects in the prior art. When the generator works, the rotating shaft, the bearing and the belt wheel rotate synchronously. Aiming at the characteristic, an external groove of a V-shaped structure is added on the outer side of a front end cover of the generator, as an embodiment, an external boss of the V-shaped structure is added on a belt wheel which is in contact with the outer side of a bearing, as an embodiment 2, a sealing baffle is arranged on the outer side of the front end cover, and the external boss of the V-shaped structure is added on the sealing baffle. And set up to the structure that has the clearance between outside recess and the outside boss, even if protective part is along with the pivot is rotatory, also can not contact with the front end housing, avoid interfering, reliably form sealed to the bearing again, and realize sealed need not complicated structure, outside boss and outside recess all be when processing corresponding part together processing can, with low costs, the process is simple. The generator structure is simple in structure, provides a good sealing effect for the end cover bearing of the generator under the condition of not increasing the cost, effectively avoids foreign matters from entering, is easy to produce and manufacture, improves the performance and the service life of the generator, reduces the failure rate of the bearing, and reduces the maintenance cost.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1a is an external structural view of a front end cover of a generator structure according to the present invention;

FIG. 1b is a schematic view of the inside structure of the front end cover of the generator structure according to the present invention;

FIG. 2 is a schematic diagram of a pulley of the generator configuration of the present invention;

FIG. 3 is a schematic view of a rotor shim for a generator configuration according to the present invention;

FIG. 4 is a schematic cross-sectional view of an embodiment 1 of the generator structure according to the present invention;

FIG. 5 is a schematic structural view of a rotating shaft of the generator structure according to the present invention;

FIG. 6 is a schematic structural diagram of the generator according to the present invention with a sealing ring added;

FIG. 7 is a schematic cross-sectional view of embodiment 2 of the generator structure according to the present invention;

in the drawings, the reference numbers are respectively: 1. a front end cover; 2. a bearing; 3. a pulley; 4. an outer groove; 5. an external boss; 6. an inner groove; 7. a rotor shim; 8. a rotor boss; 9. a rotating shaft; 10. installing a groove; 11. a seal ring; 12. a shield member; 13. sealing the baffle; 14. a bearing chamber; 15. and a rotating shaft hole.

Detailed Description

The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:

as shown in fig. 1 to 7, the present invention is a generator structure, the generator structure includes a front end cover 1 and a bearing 2, the front end cover 1 is provided with a bearing chamber 14, the bearing 2 is installed in the bearing chamber 14, the bearing 2 supports a rotating shaft 9, an outer end surface of the front end cover 1 is provided with an outer groove 4, a protective component 12 is installed on the rotating shaft 9, the protective component 12 is provided with an outer boss 5 corresponding to the outer groove 4 in shape and position, and the outer groove 4 and the outer boss 5 are in clearance fit. The structure provides an improved technical scheme aiming at the defects in the prior art. When the generator works, the rotating shaft, the bearing and the belt wheel rotate synchronously. To address this characteristic, an external groove 4 with a V-shaped structure is added on the outer side of a front end cover 1 of the generator, as embodiment 1, an external boss 5 with a V-shaped structure is added on a pulley 3 contacting with the outer side of a bearing 2, as embodiment 2, a sealing baffle 13 is arranged on the outer side of the front end cover 1, and an external boss 5 with a V-shaped structure is added on the sealing baffle 13, so that the pulley 3 and the sealing baffle 13 are used as a protective component 12, and after the generator is assembled, the external boss 5 can be matched with the external groove 4 on the front end cover 1, thereby realizing reliable sealing and protection of the bearing 2 and avoiding foreign matters from entering. And set up to the structure that has the clearance between outside recess 4 and the outside boss 5, even if protective part 12 rotates along with pivot 9, also can not contact with front end housing 1, avoid interfering, reliably form again sealed to bearing 2, and realize sealed need not complicated structure, outside boss 5 and outside recess 4, all process one when processing corresponding part can, with low costs, the process is simple. The generator structure provided by the utility model is simple in structure, provides a good sealing effect for the generator end cover bearing under the condition of not increasing the cost, effectively avoids foreign matters from entering, is easy to produce and manufacture, improves the performance and service life of the generator, reduces the failure rate of the bearing, and reduces the maintenance cost.

The outer groove 4 is arranged at the periphery of the bearing chamber 14. By means of the structure, the reliable matching of the external groove and the external boss is guaranteed, and the purpose of protecting the bearing position is achieved.

The protective component 12 is a belt wheel 3, and one side of the belt wheel 3 close to the front end cover 1 is provided with an external boss 5 corresponding to the shape and position of the external groove 4 of the front end cover 1. When the front end cover 1, the bearing 2 and the belt wheel 3 are connected, the external boss 5 on the belt wheel 3 is set to be a structure capable of extending into the external groove 4 of the bearing 2. Above-mentioned structure, as embodiment 1, protective part 12 is band pulley 3, and band pulley 3 installs on pivot 9, and outside boss 5 on the band pulley 3 cooperates with outside recess 4 on the front end housing 1, realizes reliable sealed and protection to bearing 2.

The protective component 12 is a sealing baffle 13, and one side of the sealing baffle 13 close to the front end cover 1 is provided with an external boss 5 corresponding to the shape and position of the external groove 4. When the front end cover 1, the bearing 2 and the sealing baffle 13 are connected, the external boss 5 on the sealing baffle 13 is set to be a structure capable of extending into the external groove 4. Above-mentioned structure, as embodiment 2, protective part 12 is seal baffle 13, and seal baffle 13 installs on pivot 9, and outside boss 5 realizes the reliable sealed and protection to bearing 2 with the cooperation of outside recess 4 on the front end housing 1.

The inner side of the front end cover 1 is provided with an inner groove 6 along the outer ring position of the bearing 2, a rotor gasket 7 is arranged on a rotating shaft 9, and a rotor boss 8 corresponding to the shape and the position of the inner groove 6 is arranged on one side of the front end cover 1 to which the rotor gasket 7 is attached. In the structure, in order to further improve the sealing performance of the bearing, the rotor boss 8 (inner boss) with a V-shaped structure is additionally arranged on the rotor gasket 7 which is in contact with the inner side of the bearing, and the rotor gasket is fixed on the rotating shaft in a straight-line press mounting mode, so that the reliability of the high-speed rotating working condition is met; therefore, when the motor is assembled, the rotor boss on the rotor gasket reliably extends into the inner groove, the rotor boss and the inner groove are not in contact, a gap exists between the rotor boss and the inner groove, and reliable sealing is achieved. Like this, through outside recess and outside boss cooperation, inside recess and inside boss cooperation realize the inside and outside sealing protection of bearing. And each part is optimized on the existing part structure, and complex processing is not needed. The inner groove and the outer groove of the end cover are both realized in a die-casting mode, and the outer boss and the inner boss on the belt wheel and the rotor gasket are realized in a machining mode. Therefore, the whole improvement is less, the processing cost is low, and the effect is good.

The rotating shaft 9 is provided with an installation groove 10 along the circumference of the rotating shaft 9, and the bearing 2 is arranged in a structure capable of being clamped in the installation groove 10. According to the structure, the bearing 2 is arranged in the mounting groove 10, so that the bearing 2 is reliably mounted, axial limiting is realized, and the inner ring of the bearing is ensured to be fixed with the rotating shaft 9. The rotor gasket 7 is fixedly connected with the rotating shaft 9 in a straight grain press mounting mode. The structure ensures the reliable connection of the rotor gasket and the rotating shaft. The rotor shim 7 rotates synchronously with the shaft 9.

And a sealing ring 11 is arranged in the outer groove 4 and/or the inner groove 6. Above-mentioned structure, whether sealing washer 11 is installed according to actual need selection, like this, can further realize the leakproofness of outside recess and outside boss, realize the leakproofness between inside recess and the inside boss.

The generator structure comprises a front end cover and a rotating shaft, wherein a bearing chamber 14 and a rotating shaft hole 15 are arranged on the front end cover 1, a bearing 2 is arranged in the bearing chamber 14, and the rotating shaft 9 is arranged in the rotating shaft hole 15 and supported by the bearing 2. The structure ensures that the rotating shaft and the bearing are reliably installed.

The generator structure is applied to automobiles.

The present invention has been described in connection with the accompanying drawings, and it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the utility model, and its application to other applications without departing from the spirit and scope of the utility model.

Claims

1. A generator structure characterized by: the generator structure include front end housing (1) and bearing (2), be equipped with bearing room (14) on front end housing (1), install bearing (2) in bearing room (14), bearing (2) support pivot (9), set up outside recess (4) on the outer terminal surface of front end housing (1), protective part (12) are installed on pivot (9), set up outside boss (5) that correspond with outside recess (4) shape and position on protective part (12), outside recess (4) and outside boss (5) set up to clearance fit.

2. The generator structure of claim 1, wherein: the outer groove (4) is arranged at the periphery of the bearing chamber (14).

3. The generator structure of claim 2, wherein: the protective component (12) is a belt wheel (3), and one side of the belt wheel (3) close to the front end cover (1) is provided with an external boss (5) corresponding to the shape and position of an external groove (4) of the front end cover (1).

4. Generator structure according to claim 2, characterized in that: the protective component (12) is a sealing baffle plate (13), and one side of the sealing baffle plate (13) close to the front end cover (1) is provided with an external boss (5) corresponding to the shape and the position of the external groove (4).

5. Generator structure according to claim 3, wherein: when the front end cover (1), the bearing (2) and the belt wheel (3) are connected, an external boss (5) on the belt wheel (3) is set to be a structure capable of extending into an external groove (4) of the bearing (2).

6. Generator structure according to claim 4, wherein: when the front end cover (1), the bearing (2) and the sealing baffle (13) are connected, the outer boss (5) on the sealing baffle (13) is set to be a structure capable of extending into the outer groove (4).

7. Generator structure according to claim 3 or 4, wherein: the inner side of the front end cover (1) is provided with an inner groove (6) along the outer ring of the bearing (2), a rotor gasket (7) is installed on the rotating shaft (9), and a rotor boss (8) corresponding to the shape and the position of the inner groove (6) is arranged on one side, attached to the front end cover (1), of the rotor gasket (7).

8. Generator structure according to claim 3 or 4, wherein: the rotating shaft (9) is provided with an installation groove (10) along the circumference of the rotating shaft (9), and the bearing (2) is of a structure capable of being clamped in the installation groove (10).

9. Generator structure according to claim 7, wherein: the rotor gasket (7) is fixedly connected with the rotating shaft (9) in a straight grain press fitting mode.

10. Generator structure according to claim 7, wherein: and a sealing ring (11) is arranged in the external groove (4) and/or the internal groove (6).

11. Generator structure in accordance with any of claims 1-10, characterized in that: the generator structure is applied to automobiles.