CN204828261U

CN204828261U - Rotating shaft of generator

Info

Publication number: CN204828261U
Application number: CN201520573274.XU
Authority: CN
Inventors: 林朝文
Original assignee: Fujian Everstrong Lega Power Equipments Co Ltd
Current assignee: Fujian Everstrong Lega Power Equipments Co Ltd
Priority date: 2015-08-03
Filing date: 2015-08-03
Publication date: 2015-12-02
Anticipated expiration: 2025-08-03

Abstract

The utility model provides a rotating shaft of generator, including a pivot body, the surface of pivot body has big footpath section, second footpath section, third footpath section and path section after to in the past in proper order, the vertical central line department of pivot body is equipped with a thru hole, and the front end of this thru hole is outwards expanded, forms one and stretches assorted macropore section with power output shaft, the inner wall of macropore section is outwards sunken, forms an axial keyway. The utility model discloses a pivot has changed the hookup mode of generator with power, has saved shaft coupling and transition disc, makes the generating set contraction in length, and the structure is compacter, and it is more convenient to assemble to can reduce manufacturing cost and freight.

Description

Alternator shaft

Technical field

The utility model is specifically related to a kind of alternator shaft.

Background technique

Rotating shaft is main parts size in generator, for installing fixing fan blade, rotor core, collector ring (or exciter rotor), bearing etc., and connects with Power output shaft extension, drives generator amature to rotate by power.Existing turning shaft structure (as shown in Figure 1), generator set is connected into power by alternator shaft shaft extension 1 ' (containing keyway 2 ', flat key 3 '), adopt coupling 4 ' that alternator shaft shaft extension 1 ' is connected with Power output shaft extension 5 ', with transition disc 6 ', front end of shield 7 ' and power side cover 8 ' are coupled together again, power drives generator amature 9 ' to rotate, make generator out-put supply for electric consumer work, but there is following shortcoming in this structure:

1, generator set length is longer, and structure is not compact;

2, connecting structure is complicated, and material is multiplex;

3, manufacture cost and freight high.

Model utility content

The technical problems to be solved in the utility model, is to provide a kind of alternator shaft.

The utility model is achieved in that a kind of alternator shaft, comprises a rotating shaft body, and the outer surface of described rotating shaft body has large footpath section, the second footpath section, the 3rd footpath section and path section from front to back successively; The vertical centerline of described rotating shaft body is provided with an open-work, and the front end of this open-work expands outwardly, and forms a macropore section matched with Power output shaft extension; The inwall of described macropore section outwards caves in, and forms an axial keyway.

Preferably, the outer surface of described large footpath section and the second footpath section is straight knurling face or light face.

Preferably, described 3rd footpath section is straight knurling face.

Preferably, the afterbody of described macropore section extends radially outward, and forms a radial direction through hole, and described radial direction through hole is connected with the end of described axial keyway.

Preferably, the afterbody inwall of described path section is equipped with a plurality of internal thread.

Preferably, the length of described macropore section is greater than the length of Power output shaft extension.

The utility model has the advantage of: change connecting mode, eliminate coupling and transition disc, make generator set shorten length, more compact structure, assemble more convenient, and manufacture cost and freight can be reduced.

Accompanying drawing explanation

The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.

Fig. 1 is the using state schematic diagram of existing alternator shaft.

Fig. 2 is the structural representation of the utility model alternator shaft.

Fig. 3 is the schematic diagram of the using state one of the utility model alternator shaft.

Fig. 4 is the schematic diagram of the using state two of the utility model alternator shaft.

Embodiment

Refer to shown in Fig. 2 and Fig. 3, a kind of alternator shaft 100, comprise a rotating shaft body 1, the outer surface of described rotating shaft body 1 has large footpath section 11, second footpath section 12, the 3rd footpath section 13 and path section 14 from front to back successively; Described large footpath section 11 is fan blade shelves, for installing fixed generator 200 fan blade 201, described second footpath section 12 is shelves unshakable in one's determination, for installing fixed generator 200 rotor core 202, described 3rd footpath section 13 is collector ring (or exciter rotor is unshakable in one's determination) shelves, for installing fixed generator 200 collector ring 203 (or exciter rotor is unshakable in one's determination), described path section 14 is bearing guard, for installing fixed generator 200 bearing 204.The outer surface of described large footpath section 11 and the second footpath section 12 can be straight knurling face or light face, adopts the resistance that straight knurling face can reduce when rotating shaft 1 is pressed into rotor core 202 and fan blade seat 201, avoids rotating shaft 1 to be out of shape.Because collector ring 203 internal material is glass fibre compression molding material, its material is more crisp, and described 3rd footpath section 13 is straight knurling face, and resistance when the 3rd footpath section 13 that can reduce rotating shaft 1 is pressed into collector ring 203 and tension force, avoid causing collector ring 203 to break.

Referring again to Fig. 2-4, the vertical centerline of described rotating shaft body 1 is provided with an open-work 15, and the front end of this open-work 15 expands outwardly, and form a macropore section 151 matched with Power output shaft extension 3, the length of described macropore section 151 is greater than the length of Power output shaft extension 3; The inwall of described macropore section 151 outwards caves in, and forms an axial keyway 152.Described macropore section 151 is for connecting with Power output shaft extension 3, and by flat key 4 transmitting torque, the setting of described axial keyway 152, can make flat key 4 be stuck in described macropore section 151.The afterbody of described macropore section 151 extends radially outward, and forms a radial direction through hole 16, and described radial direction through hole 16 is connected with the end of described axial keyway 152, and the processing of described axial keyway 152 is convenient in the setting of this radial direction through hole 16.The afterbody inwall of described path section 14 is equipped with a plurality of internal thread 141, exits for coordinating generator 200 rotor.

Referring again to Fig. 3-4, when applying utility model works, its operating method is as follows:

(1) generator 200 front cover 205 is fixed on power side cover 5;

(2) in Power output shaft extension 3, load onto flat key 4, finished product rotor is inserted in Power output shaft extension 3 and flat key 4, rotor bolt 206 is inserted the screw 31 of described open-work 15 to Power output shaft extension 3, and lock;

(3) stator 207 is loaded;

(4) load rear end cover 208, stator bolts 209 is hung corner apertures through rear end cover 208 and hangs angle screw to front cover 205 and lock.

(5) if run into rotor when extremely need split out maintenance, first unclamp and take out rotor bolt 206, then insert in the screw 31 of described open-work 15 to Power output shaft extension 3 with a round iron rod, this pole front end should be less than the diameter of screw 31, the rear end of pole need reach internal thread 141 place of described open-work 15 end, screw in described internal thread 141 with a bolt again, can rotor be exited.

The utility model tool has the following advantages:

(1) generator 200 can directly connect with power, compact structure, and unit total length is shortened;

(2) do not need with coupling and transition disc, structure is simple, easy to assembly;

(3) reduce manufacture cost and freight, increase economic benefit.

Claims

1. an alternator shaft, is characterized in that: comprise a rotating shaft body, and the outer surface of described rotating shaft body has large footpath section, the second footpath section, the 3rd footpath section and path section from front to back successively; The vertical centerline of described rotating shaft body is provided with an open-work, and the front end of this open-work expands outwardly, and forms a macropore section matched with Power output shaft extension; The inwall of described macropore section outwards caves in, and forms an axial keyway.

2. alternator shaft as claimed in claim 1, is characterized in that: the outer surface of described large footpath section and the second footpath section is straight knurling face or light face.

3. alternator shaft as claimed in claim 1, is characterized in that: described 3rd footpath section is straight knurling face.

4. alternator shaft as claimed in claim 1, is characterized in that: the afterbody of described macropore section extends radially outward, and forms a radial direction through hole, and described radial direction through hole is connected with the end of described axial keyway.

5. alternator shaft as claimed in claim 1, is characterized in that: the afterbody inwall of described path section is equipped with a plurality of internal thread.

6. alternator shaft as claimed in claim 1, is characterized in that: the length of described macropore section is greater than the length of Power output shaft extension.