CN209896841U

CN209896841U - Main shaft structure of generator

Info

Publication number: CN209896841U
Application number: CN201920695201.6U
Authority: CN
Inventors: 杨德华
Original assignee: Fu Fu Polytron Technologies Inc
Current assignee: Fu Fu Polytron Technologies Inc
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-01-03
Anticipated expiration: 2029-05-16

Abstract

The utility model discloses a generator main shaft structure, including transmission shaft, rotor shaft, loose axle, connecting axle, transmission shaft one end is rotated with rotor shaft one end and is connected, and the transmission shaft other end rotates with the prime mover to be connected, the center of rotor shaft is equipped with the axial through-hole, in the axial through-hole was located to the connecting axle, the connecting axle left end is connected with the loose axle, loose axle fixed mounting is on the transmission shaft, the connecting axle right-hand member is connected with the rotor shaft other end. The utility model discloses the advantage: the novel electric generator has the advantages of small volume, simple and compact structure, stable operation, high reliability and convenient and quick installation, can eliminate coaxiality errors when the transmission shaft, the rotor shaft and the connecting shaft are installed, reduces vibration when the generator operates, and can adjust the axial distance between the spline shaft and the rotor shaft.

Description

Main shaft structure of generator

Technical Field

The utility model relates to a technical field of main shaft structure especially relates to a generator main shaft structure.

Background

The main shaft is an important component of the generator rotor, and the reliability of the whole generator is affected by the strength of the main shaft and the stability and reliability of the rotor operation due to the good and bad structure of the main shaft, so that the search for a more reasonable main shaft structure is always a subject of research of generator developers. At present, it is common in a generator set that an elastic coupling can be mounted on a main shaft, and the elastic coupling is connected with a prime mover to drive a generator to run. The development direction of the small-sized generator in the world is small in size, simple in structure and high in reliability.

Therefore, a suitable generator main shaft structure needs to be found to meet the requirement of a small generator, so that the generator runs stably and is simple in structure.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a generator main shaft structure, its reliability is high, and specially adapted small-size generator.

The utility model adopts the following technical scheme: the utility model provides a generator main shaft structure, includes transmission shaft, rotor shaft, loose axle, connecting axle, transmission shaft one end is rotated with rotor shaft one end and is connected, and the transmission shaft other end rotates with the prime mover to be connected, the center of rotor shaft is equipped with the axial through-hole, the connecting axle is located in the axial through-hole, connecting axle left end and loose axle are connected, loose axle fixed mounting is on the transmission shaft, the connecting axle right-hand member is connected with the rotor shaft other end.

Preferably, the transmission shaft both ends are external splines, rotor shaft one end is internal spline, and the prime mover is equipped with internal spline, external spline and internal spline meshing connection.

Preferably, the movable shaft is arranged at one end of the transmission shaft connected with the rotor shaft, a pressing plate is arranged at the right end of the movable shaft, and the screw penetrates through the pressing plate to fixedly connect the movable shaft with the transmission shaft.

Preferably, the left end of the connecting shaft is provided with a pin hole, a pin shaft is arranged in the pin hole in a matching manner, the connecting shaft is connected with the movable shaft through the pin shaft, and the connecting shaft and the movable shaft can rotate relatively around the pin shaft.

Preferably, the right end of the connecting shaft is provided with an external thread, the external thread is connected with a nut, the nut can be rotated to drive the connecting shaft to move axially, so that the axial position of the transmission shaft is adjusted, the nut is fixedly arranged at the right end of the rotor shaft through a bolt, and the rotor shaft can be driven to rotate together by driving the transmission shaft through a prime motor.

Compared with the prior art, the utility model has the advantages of: 1) the spline connection is adopted, so that the volume is small, the structure is simple and compact, the operation is stable, the reliability is high, and the installation is convenient and quick; 2) the spline shaft is connected with the connecting shaft by adopting the movable shaft, so that the coaxiality error of the transmission shaft, the rotor shaft and the connecting shaft during installation can be eliminated, and the vibration of the generator during operation is reduced; 3) the rear end of the connecting shaft can adjust the axial distance between the spline shaft and the rotor shaft through the external threads and the nuts.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The reference numbers indicate 1, a transmission shaft 2, a pin shaft 3, a movable shaft 4, a pressure plate 5, a screw 6, a rotor shaft 7, a connecting shaft 8, a nut 9 and a bolt.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Please refer to fig. 1, a generator main shaft structure, which comprises a transmission shaft (1), a rotor shaft (6), a movable shaft (3), and a connection shaft (7), wherein one end of the transmission shaft (1) is rotatably connected with one end of the rotor shaft (6), the other end of the transmission shaft (1) is rotatably connected with a prime mover, an axial through hole is arranged at the center of the rotor shaft (6), the connection shaft (7) is arranged in the axial through hole, the left end of the connection shaft (7) is connected with the movable shaft (3), the movable shaft (3) is fixedly installed on the transmission shaft (1), and the right end of the connection shaft (7) is connected with the other end of the rotor shaft (6).

Preferably, the two ends of the transmission shaft (1) are provided with external splines, one end of the rotor shaft (6) is provided with an internal spline, the prime mover is provided with an internal spline, and the external splines are in meshed connection with the internal splines.

Preferably, the movable shaft (3) is arranged at one end of the transmission shaft (1) connected with the rotor shaft (6), the pressing plate (4) is arranged at the right end of the movable shaft (3), and the screw (5) penetrates through the pressing plate (4) to fixedly connect the movable shaft (3) with the transmission shaft (1).

Preferably, the left end of the connecting shaft (7) is provided with a pin hole, the pin hole is internally provided with the pin shaft (2) in a matching manner, the connecting shaft (7) is connected with the movable shaft (3) through the pin shaft (2), and the connecting shaft (7) and the movable shaft (3) can rotate relatively around the pin shaft (2).

Preferably, connecting axle (7) right-hand member is equipped with the external screw thread, the external screw thread is connected with nut (8), rotates nut (8) and can drives connecting axle (7) axial motion to the axial position of adjustment transmission shaft (1), nut (8) are through bolt (9) fixed mounting at rotor shaft (6) right-hand member, just can drive rotor shaft (6) through prime mover drive transmission shaft (1) and rotate together like this.

Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a generator main shaft structure, its characterized in that, includes transmission shaft (1), rotor shaft (6), loose axle (3), connecting axle (7), transmission shaft (1) one end is rotated with rotor shaft (6) one end and is connected, and the transmission shaft (1) other end rotates with the prime mover to be connected, the center of rotor shaft (6) is equipped with the axial through-hole, in the axial through-hole was located in connecting axle (7), connecting axle (7) left end is connected with loose axle (3), loose axle (3) fixed mounting is on transmission shaft (1), connecting axle (7) right-hand member is connected with the rotor shaft (6) other end.

2. Generator main shaft arrangement according to claim 1, wherein the drive shaft (1) is externally splined at both ends, the rotor shaft (6) is internally splined at one end, and the prime mover is provided with internal splines, which are in meshed connection with the internal splines.

3. The generator main shaft structure according to claim 1, wherein the movable shaft (3) is arranged at one end of the transmission shaft (1) connected with the rotor shaft (6), a pressing plate (4) is arranged at the right end of the movable shaft (3), and a screw (5) penetrates through the pressing plate (4) to fixedly connect the movable shaft (3) with the transmission shaft (1).

4. The generator main shaft structure according to claim 1, wherein a pin hole is formed in the left end of the connecting shaft (7), a pin shaft (2) is sleeved in the pin hole, the connecting shaft (7) is connected with the movable shaft (3) through the pin shaft (2), and the connecting shaft (7) and the movable shaft (3) can rotate relatively around the pin shaft (2).

5. Generator main shaft structure according to claim 1, wherein the right end of the connecting shaft (7) is provided with an external thread, the external thread is connected with a nut (8), and the nut (8) is fixedly mounted at the right end of the rotor shaft (6) through a bolt (9).