CN104074859A - Internal spline motor shaft - Google Patents
Internal spline motor shaft Download PDFInfo
- Publication number
- CN104074859A CN104074859A CN201410284024.4A CN201410284024A CN104074859A CN 104074859 A CN104074859 A CN 104074859A CN 201410284024 A CN201410284024 A CN 201410284024A CN 104074859 A CN104074859 A CN 104074859A
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- CN
- China
- Prior art keywords
- internal spline
- motor shaft
- axis body
- splined sleeve
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses an internal spline motor shaft which comprises a shaft body (1), bearings (2) and a spline sleeve (3), wherein a blind hole is formed in one end of the shaft body (1), the spline sleeve (3) is inserted in the blind hole of the shaft body (1), the bearings (2) are arranged at two ends of the shaft body (1) in a sleeving manner, and the spline sleeve (3) is in interference fit with the shaft body (1), and the bearings (2) are in interference fit with the shaft body (1). By adopting a manner of an integral shaft and the spline sleeve, the internal spline motor shaft provided by the invention improves the strength, and is relatively high in fit precision and relatively good in stability. Compared with an original internal spline motor shaft, the internal spline motor shaft is relatively long in service life, and is capable of replacing an old type internal spline motor shaft.
Description
Technical field
The invention belongs to technical field of motors, particularly a kind of motor shaft.
Background technique
The mechanical connection manner of motor drive actuator mainly contains two kinds at present: first kind of way is by coupling, the input shaft of the output shaft of motor and actuator to be coupled together; The second way is that the output shaft of motor is made to internal spline structure, and the input shaft of actuator directly inserts in motor internal spline quill shaft and couples together.Structurally, the second way has been saved intermediate shaft coupling, has compact structure and reduces the advantages such as vibration, thereby becoming preferred Placement, and application is more and more extensive at present.
Traditional internal spline motor shaft all adopts integral structure design, axis body and splined sleeve are designed to integral structure by the internal spline motor shaft of this integral structure, splined sleeve inside is designed to blind hole structure simultaneously, because blind hole structure difficulty in course of working is relatively large, meanwhile, the rapidoprint that axis body is selected with splined sleeve also must be identical, therefore, this structural design not only makes the work efficiency of whole rotating shaft lower, and whole rotating shaft processing cost also can correspondingly raise.
Splined sleeve and axis body were processed and were fitted together respectively afterwards, had solved the problems referred to above.But be that the mode that split is pressed into is combined splined sleeve and axis body due to what adopt, as illustrated in fig. 1 and 2, the bearing housing of outside is contained on splined sleeve, can produces like this cooperation place and easily become flexible, the not high problem of the low reliability of rigidity.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of internal spline motor shaft that adopts integral shaft to add splined sleeve, and this motor shaft can improve rigidity and stability.
A kind of internal spline motor shaft disclosed by the invention, comprises axis body, bearing and splined sleeve.Described axis body one end has blind hole, and splined sleeve inserts in the blind hole of axis body, and bearing housing is contained in axis body two ends; Between splined sleeve and axis body, between bearing and axis body, are all interference fit.
As the further improvement of technique scheme, described splined sleeve has raised head face, the raised head face of splined sleeve and the end contact of axis body.
As the further improvement of technique scheme, described splined sleeve is involute splines sleeve.
Improve as the another kind of technique scheme, described internal spline motor shaft also comprises shaft shoulder cover, and the shaft shoulder is placed on splined sleeve inside gos deep into one end of axis body blind hole.
Internal spline motor shaft of the present invention adopts integral shaft to add the mode of splined sleeve, has improved intensity, and quality of fit is higher, and stability is better.With respect to original internal spline motor shaft, longer service life, alternative old-fashioned internal spline motor shaft.
Brief description of the drawings
Fig. 1 is the internal spline motor shaft structure front view of the mode that is pressed into of original employing split;
Fig. 2 is the internal spline motor shaft structure left view of the mode that is pressed into of original employing split;
Fig. 3 is internal spline motor shaft structure front view of the present invention
Fig. 4 is internal spline motor shaft structure left view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the weightless feeding machine of one that the present invention is proposed is elaborated.
As illustrated in fig. 1 and 2, what internal spline motor shaft originally adopted is that the mode that split is pressed into is combined splined sleeve and axis body, and the bearing housing of outside is contained on splined sleeve, can produce like this cooperation place and easily become flexible, the not high problem of the low reliability of rigidity.
As shown in Figures 3 and 4, internal spline motor shaft of the present invention comprises axis body 1, bearing 2, splined sleeve 3 and shaft shoulder cover 4.Axis body 1 one end has blind hole, and gradually splined sleeve 3 inserts in the blind hole of axis body 1, and bearing 2 is sleeved on axis body 1 two ends; Between splined sleeve 3 and axis body 1, between bearing 2 and axis body 1, are all interference fit.Bearing 2 is sleeved on axis body 1, instead of is sleeved on splined sleeve 3, can ensure that the cooperation when splined sleeve 3 and axis body 1 is more accurate and firm, alleviates the radial force of cooperation place, improves integral rigidity.
Splined sleeve 3 is involute splines sleeve, and under identical appearance size, involute splines path is large, is conducive to increase the rigidity of axle.This splined sleeve 3 also has raised head face, the end contact of the raised head face of splined sleeve 3 and axis body 1.The boss of splined sleeve 3 can limit and adjust the position relationship between itself and axis body 1.
Shaft shoulder cover 4 is placed in splined sleeve 3 inside gos deep into one end of axis body 1 blind hole.Shaft shoulder cover 4 output shafts for better fixing actuating device.
Claims (4)
1. an internal spline motor shaft, comprise axis body (1), bearing (2) and splined sleeve (3), it is characterized in that: described axis body (1) one end has blind hole, splined sleeve (3) inserts in the blind hole of axis body (1), and bearing (2) is sleeved on axis body (1) two ends; Between splined sleeve (3) and axis body (1), between bearing (2) and axis body (1), are all interference fit.
2. internal spline motor shaft according to claim 1, is characterized in that: described splined sleeve (3) has raised head face, the end contact of the raised head face of splined sleeve (3) and axis body (1).
3. internal spline motor shaft according to claim 2, is characterized in that: described splined sleeve (3) is involute splines sleeve.
4. according to the internal spline motor shaft described in claim 1,2 or 3, it is characterized in that: described internal spline motor shaft also comprises shaft shoulder cover (4), shaft shoulder cover (4) is placed in splined sleeve (3) inside gos deep into one end of axis body (1) blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284024.4A CN104074859A (en) | 2014-06-24 | 2014-06-24 | Internal spline motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284024.4A CN104074859A (en) | 2014-06-24 | 2014-06-24 | Internal spline motor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104074859A true CN104074859A (en) | 2014-10-01 |
Family
ID=51596371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410284024.4A Pending CN104074859A (en) | 2014-06-24 | 2014-06-24 | Internal spline motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104074859A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041838A (en) * | 2015-06-25 | 2015-11-11 | 宁波韵升股份有限公司 | Motor shaft with inner spline and manufacturing method of motor shaft |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201312154Y (en) * | 2008-11-11 | 2009-09-16 | 比亚迪股份有限公司 | Connecting structure of motor internal spline output shaft |
| CN201318355Y (en) * | 2008-12-10 | 2009-09-30 | 抚顺煤矿电机制造有限责任公司 | Connecting structure of internal spline half shaft of motor |
| CN102588452A (en) * | 2012-01-20 | 2012-07-18 | 太仓富田瑞兰得电机有限公司 | Internal spline rotating shaft for motor |
| CN102635624A (en) * | 2012-04-18 | 2012-08-15 | 宁波捷成轴业有限公司 | Internal spline shaft and preparation method thereof |
| CN202918101U (en) * | 2012-10-31 | 2013-05-01 | 大洋电机新动力科技有限公司 | Motor structure with shafts on two ends |
| CN203285826U (en) * | 2013-05-30 | 2013-11-13 | 广东省东莞电机有限公司 | Main shaft structure of water-cooled permanent magnet motor |
| CN203362791U (en) * | 2013-07-01 | 2013-12-25 | 湖北天运汽车电器***有限公司 | Internal spline rotating shaft of motor |
-
2014
- 2014-06-24 CN CN201410284024.4A patent/CN104074859A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201312154Y (en) * | 2008-11-11 | 2009-09-16 | 比亚迪股份有限公司 | Connecting structure of motor internal spline output shaft |
| CN201318355Y (en) * | 2008-12-10 | 2009-09-30 | 抚顺煤矿电机制造有限责任公司 | Connecting structure of internal spline half shaft of motor |
| CN102588452A (en) * | 2012-01-20 | 2012-07-18 | 太仓富田瑞兰得电机有限公司 | Internal spline rotating shaft for motor |
| CN102635624A (en) * | 2012-04-18 | 2012-08-15 | 宁波捷成轴业有限公司 | Internal spline shaft and preparation method thereof |
| CN202918101U (en) * | 2012-10-31 | 2013-05-01 | 大洋电机新动力科技有限公司 | Motor structure with shafts on two ends |
| CN203285826U (en) * | 2013-05-30 | 2013-11-13 | 广东省东莞电机有限公司 | Main shaft structure of water-cooled permanent magnet motor |
| CN203362791U (en) * | 2013-07-01 | 2013-12-25 | 湖北天运汽车电器***有限公司 | Internal spline rotating shaft of motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041838A (en) * | 2015-06-25 | 2015-11-11 | 宁波韵升股份有限公司 | Motor shaft with inner spline and manufacturing method of motor shaft |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141001 |