CN1707914A - Rotary axle for inductive motor and assembling method thereof - Google Patents
Rotary axle for inductive motor and assembling method thereof Download PDFInfo
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- CN1707914A CN1707914A CN 200410019523 CN200410019523A CN1707914A CN 1707914 A CN1707914 A CN 1707914A CN 200410019523 CN200410019523 CN 200410019523 CN 200410019523 A CN200410019523 A CN 200410019523A CN 1707914 A CN1707914 A CN 1707914A
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- rotating shaft
- bearing
- rotor core
- induction motor
- described rotating
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Abstract
The present invention is rotating shaft of inducing motor and its assembling method. The rotating shaft is assembled in the axis of the rotor iron core and rotated together with the rotor iron core. The bearing retaining structure is formed on the rotating shaft through extruding the rotating shaft between upper and lower molds to constitute extruder to make the rotating shaft produce plastic deformation. The bearings are installed along the rotating shaft and on two sides of the rotor iron core to support the rotating shaft. The assembling process includes the following steps: inserting the rotating shaft into the axis of the rotor iron core; fixing the connection state between the rotor iron core and the rotating shaft; extruding the rotating shaft in the extruder to form the retaining structure; and assembling bearings to two ends of the rotating shaft.
Description
Technical field
The present invention relates to a kind of rotating shaft and assemble method thereof of induction motor.
Background technology
As shown in Figure 1, 2, the rotor of existing induction motor comprises rotor core (11), be installed in the inside of stator (not shown) and keep certain intervals with stator, and be rotatable; Rotating shaft (21) is connected on the axle center of above-mentioned rotor core (11), can together rotate with rotor core (11).
Above-mentioned rotor core (11) comprises several silicon steel plates (12), is formed centrally the through hole that is used for installing rotating shaft (21) in them, and their periphery then forms several slits (13b), and insulation stacks up; Several stubs (14) are arranged in the slit (13b) of silicon steel plate (12); End-rings (15) is installed in the two ends of the silicon steel plate (12) that stacks, and is integral with stub (14).
Also form some blades (16) on the outer surface of above-mentioned each end-rings (15), it is outstanding along axis direction, along the circumferential direction at a distance of certain intervals.
In addition, along the length direction of above-mentioned rotating shaft (21), in the both sides of rotor core (11) pair of bearings (17) is housed, this a pair of bearing (17) supporting rotating shaft (21) also makes its rotation.Can to keep certain interval in order making between the above-mentioned bearing (17), between rotor core (11) and the bearing (17) locating snap ring (23) to be housed.
Above-mentioned locating snap ring (23) is made with elastomeric material, is the annular that a side has opening, promptly so-called E shape.Rotating shaft (21) is gone up formation can make locating snap ring (23) insert the link slot (22) that connects.
But, in aforesaid existing induction motor, can keep certain interval in order to make between the bearing (17), rotating shaft (21) is gone up and is formed link slot (22), and locating snap ring (23) is installed in link slot (22).Above-mentioned link slot (22) is to cave inward in rotating shaft (22) upper edge diametric(al), along the circumferential direction prolong and form.Thereby in making the operation of above-mentioned link slot,, so just easily rotating shaft being fractureed if firmly excessive, this is existing in prior technology problem just also.
In addition, owing to need to have above-mentioned link slot and locating snap ring in the prior art, thereby parts and assembling procedure are increased, thus cost is increased.Moreover, if do not cause locating snap ring (23) to come off, will produce the fault that the position of bearing (17) changes so from rotating shaft (21) owing to locating snap ring (23) inserts fully.
Summary of the invention
In order to overcome the above-mentioned shortcoming that existing induction motor exists, the invention provides a kind of rotating shaft and assemble method thereof of induction motor, it no longer needs to install the locating snap ring that is used for fixing the position of bearings, thereby it is damaged to prevent that rotating shaft from taking place, reduce components number and assembling procedure, can also prevent the fault that the position of bearings changes simultaneously.
The rotating shaft of induction motor of the present invention is:
A kind of rotating shaft of induction motor is characterized in that, comprises rotating shaft, is to be bar-shaped, is connected on the axle center of rotor core, can rotate with rotor core; The bearing chocking construction, be that on described rotating shaft, form and the raised structures rotating shaft one, they are by being placed on rotating shaft between the pressurizing unit that is made of upper die and lower mould, making rotating shaft produce plastic deformation along diametric(al) forms, can prevent that bearing is close mutually, described bearing is installed in the both sides of described rotor core respectively along described rotating shaft length direction, can supporting rotating shaft and it can be rotated.
The rotating shaft of aforesaid induction motor, the cross section of its middle (center) bearing chocking construction is quadrangle.
The rotating shaft of aforesaid induction motor, its middle (center) bearing chocking construction has at least a pair of, and they are outstanding and direction is relative along the diametric(al) of described rotating shaft.
The assemble method of the rotating shaft of induction motor of the present invention is:
A kind of assemble method of rotating shaft of induction motor is characterized in that, it is by forming with the next stage, promptly rotating shaft is inserted stage on the axle center that is connected to rotor core; The stage that the connection status of described rotor core and described rotating shaft is fixed up; Described rotating shaft is placed between the pressurizing unit that is made of upper die and lower mould, makes described rotating shaft produce plastic deformation along diametric(al), thus the stage of bearing chocking construction formation and described rotating shaft one, outstanding; Bearing is connected to the stage at the two ends of described rotating shaft.
The assemble method of the rotating shaft of aforesaid induction motor, the rotor core that wherein is connected on the described rotating shaft is to fix by the position that described rotating shaft is housed at its close two ends being carried out ca(u)lk (caulking) processing.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples
Fig. 1 is the rotor configuration schematic diagram of existing induction motor
Fig. 2 is the schematic diagram of bearing portions of the rotor of existing induction motor shown in Figure 1
Fig. 3 is the schematic diagram of rotating shaft induction motor rotor configuration of the present invention
Fig. 4 is the schematic diagram of rotating shaft induction motor rotor bearing part shown in Figure 3
Fig. 5 is the sectional view of A-A line shown in Figure 4
Fig. 6 is the forming process schematic diagram that is used for illustrating bearing chocking construction shown in Figure 3
The number in the figure explanation:
31: rotor core 32: silicon steel plate
33a: axis hole 33b: slit
34: stub (bar) 35: end-rings (end ring)
36: blade (blade) 37: bearing
41: rotating shaft 42: bearing chocking construction (bearing stopper)
43a: upper die (die) 43b: lower mould (die)
Embodiment
To shown in Figure 6, the rotor of induction motor of the present invention comprises rotor core (31) as Fig. 3, is to be formed by stacking by many silicon steel plate (32) insulation that possess axis hole (33a) and a plurality of slit (33); Stub (34) is to form in each slit (33b) of rotor core (31); End-rings (35) is the two ends of the rotor core (31) that is installed in respectively; Multi-disc blade (36), they form on the outer surface of above-mentioned each end-rings (35), are outstanding along axis direction, along the circumferential direction at a distance of certain intervals.The axle center of rotor core (31) is connected with the rotating shaft (41) of induction motor of the present invention.
Above-mentioned rotating shaft (41) inserts and is connected on the axle center of rotor core (31), can rotate with rotor core (31).Along the axis direction of above-mentioned rotating shaft (41), in the both sides of rotor core (31) bearing (37) is housed respectively, keep certain interval each other in order to make above-mentioned bearing (37), formed the bearing chocking construction (42) of one with it on the rotating shaft (41).
That is to say that above-mentioned rotating shaft (41) is and has the bar-shaped of certain diameter, it is positioned at the both sides of rotor core (31), forms the bearing chocking construction (42) that can make bearing (37) keep certain intervals respectively.
Above-mentioned each bearing chocking construction (42) is to form on the outer surface of rotating shaft (41), is the outstanding structure by rotating shaft (41) is formed along diametric(al) generation plastic deformation, and they and rotating shaft (41) are one.Above-mentioned bearing chocking construction (42) should have at least a pair of, and its diametric(al) along above-mentioned rotating shaft (41) is outstanding and direction is relative.
The formation method of above-mentioned bearing chocking construction (42) as shown in Figure 6, they utilize extruding (press) device to make, this pressurizing unit is made of upper die (43a) and lower mould (43b), their spacing is corresponding with the diameter of above-mentioned rotating shaft (41), and the pressure surface that adds that has the rectangular shape in cross section respectively, like this, the extruding back just can form the cross sectional shape of " recessed " shape.
In addition, utilize the cross section of the bearing chocking construction (42) that aforesaid pressurizing unit makes to be quadrangle.
Assemble method to rotating shaft with said structure is illustrated below.
The assemble method of the rotating shaft of induction motor of the present invention is by forming with the next stage, promptly rotating shaft (41) inserted stage on the axle center that is connected to rotor core (31); The stage that the connection status of above-mentioned rotor core (31) and above-mentioned rotating shaft (41) is fixed up; Above-mentioned rotating shaft (41) is placed between the pressurizing unit that is made of upper die (43a) and lower mould (43b), make above-mentioned rotating shaft (41) produce plastic deformation along diametric(al), thus the stage of bearing chocking construction (42) formation and above-mentioned rotating shaft (41) one, outstanding.
At first, need rotating shaft (10) insertion is connected on the axle center of rotor core (31), then the connection status of rotor core (31) with rotating shaft (41) is fixed up.Here, the rotor core (31) that is connected on the above-mentioned rotating shaft (41) is to fix by the position that rotating shaft (41) is housed at its close two ends being carried out ca(u)lk (caulking) processing.
Next, utilize anchor clamps that the rotating shaft (41) that connects rotor core (31) is fixed up, exert pressure having separately on the upper die (43a) that adds pressure surface and be in separated position and the lower mould (43b) then, so, the part of the outer ring of rotating shaft (41) will be outwards outstanding in the effect lower edge diametric(al) of upper die (43a) and lower mould (43b), produce plastic deformation, just can form bearing chocking construction (42) thus.
Form bearing chocking construction (42) afterwards by said method, as long as bearing (37) is connected respectively to the two ends of rotating shaft (41).
The effect of invention
As mentioned above, if adopt rotating shaft and the assemble method thereof of induction conductivity of the present invention, so Just can remove the locating snap ring that is used for fixing the bearing position, also just no longer need simultaneously formation to be used for connecting State the link slot of locating snap ring, it is broken to prevent that therefore rotating shaft from occurring in the process that forms above-mentioned link slot The phenomenon of decreasing.
Meanwhile, the present invention can also reduce components number and assembling procedure, avoids taking place the bearing position The fault that changes.
Claims (5)
1, a kind of rotating shaft of induction motor is characterized in that, comprises rotating shaft, is to be bar-shaped, is connected on the axle center of rotor core, can rotate with rotor core; The bearing chocking construction, be that on described rotating shaft, form and the raised structures rotating shaft one, they are by being placed on rotating shaft between the pressurizing unit that is made of upper die and lower mould, making rotating shaft produce plastic deformation along diametric(al) forms, can prevent that bearing is close mutually, described bearing is installed in the both sides of described rotor core respectively along described rotating shaft length direction, can supporting rotating shaft and it can be rotated.
2, the rotating shaft of induction motor according to claim 1 is characterized in that the cross section of described bearing chocking construction is quadrangle.
3, the rotating shaft of induction motor according to claim 1 and 2, it is a pair of to it is characterized in that described bearing chocking construction has at least, and they are outstanding and direction is relative along the diametric(al) of described rotating shaft.
4, a kind of assemble method of rotating shaft of induction motor as claimed in claim 1 is characterized in that, it is by forming with the next stage, promptly rotating shaft is inserted stage on the axle center that is connected to rotor core; The stage that the connection status of described rotor core and described rotating shaft is fixed up; Described rotating shaft is placed between the pressurizing unit that is made of upper die and lower mould, makes described rotating shaft produce plastic deformation along diametric(al), thus the stage of bearing chocking construction formation and described rotating shaft one, outstanding; Bearing is connected to the stage at the two ends of described rotating shaft.
5, the assemble method of the rotating shaft of induction motor according to claim 4, the rotor core that it is characterized in that being connected on the described rotating shaft is to fix by the position that described rotating shaft is housed at its close two ends being carried out the ca(u)lk processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410019523 CN1707914A (en) | 2004-06-09 | 2004-06-09 | Rotary axle for inductive motor and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410019523 CN1707914A (en) | 2004-06-09 | 2004-06-09 | Rotary axle for inductive motor and assembling method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1707914A true CN1707914A (en) | 2005-12-14 |
Family
ID=35581615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410019523 Pending CN1707914A (en) | 2004-06-09 | 2004-06-09 | Rotary axle for inductive motor and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1707914A (en) |
-
2004
- 2004-06-09 CN CN 200410019523 patent/CN1707914A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20051214 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |