CN203114872U - Motor shaft - Google Patents
Motor shaft Download PDFInfo
- Publication number
- CN203114872U CN203114872U CN 201320165618 CN201320165618U CN203114872U CN 203114872 U CN203114872 U CN 203114872U CN 201320165618 CN201320165618 CN 201320165618 CN 201320165618 U CN201320165618 U CN 201320165618U CN 203114872 U CN203114872 U CN 203114872U
- Authority
- CN
- China
- Prior art keywords
- rod
- motor shaft
- connecting rod
- polished rod
- knurled
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model provides a motor shaft, which comprises a first connecting rod, a first polish rod, a second polish rod, a third polish rod, a fourth polish rod, a knurled rod and a second connecting rod, wherein the first connecting rod, the first polish rod, the second polish rod, the third polish rod, the fourth polish rod, the knurled rod and the second connecting rod are connected in sequence; the excircle faces of the first connecting rod and the second connecting rod are respectively provided with a spline; and the excircle face of the knurled rod is knurled. According to the motor shaft provided by the utility model, the excircle faces of the first connecting rod and the second connecting rod at both ends are respectively provided with the spline, so that the phenomenon that the root stress is concentrated due to the fact that flat keys are used is avoided, i.e. the overall strength of the motor shaft is enhanced, and a higher load can be borne by the same diameter. The knurled rod is provided with a commutator, so that the knurled rod can be prevented from slipping in a radial direction, and therefore, the overall precision of the motor shaft is improved. The whole motor shaft is in a stepped shaft form of which both ends are small and the middle is big, so that the overall strength of the motor shaft is further enhanced. The motor shaft provided by the utility model is simple in structure, high in strength and long in service life, is convenient to process and is capable of bearing the higher load.
Description
Technical field
The utility model relates to a kind of axle, particularly a kind of motor shaft.
Background technique
Motor (being commonly called as " motor ") refers to realize electric energy conversion or a kind of calutron that transmits according to the law of electromagnetic induction.Motor shaft is one of them vitals, and its performance directly influences whole motor properties, and traditional motor shaft is simple in structure, and anti-twisting property is poor, easily causes parts to skid, and working life is low.
The model utility content
(1) technical problem that will solve
It is good that the technical problems to be solved in the utility model provides a kind of anti-twisting property, the motor shaft of long service life.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of motor shaft, comprise the head rod 1, first polished rod 2, second polished rod 3, the 3rd polished rod 4, the 4th polished rod 5, annular knurl bar 6 and second connecting rod 7 that connect successively, be equipped with spline, annular knurl on the periphery of described annular knurl bar 6 on described head rod 1 and second connecting rod, 7 peripheries.
Further, described the 4th polished rod 5 periphery upper edge axial directions are provided with strip groove 51.
Further, described strip groove 51 is at least four and circumferentially uniform along axis.
Further, described annular knurl is straight knurling.
Further, the diameter of described head rod 1, first polished rod 2, second polished rod 3 and the 3rd polished rod 4 increases successively.
Further, the diameter of described second connecting rod 7, annular knurl bar 6, the 4th polished rod 5 and the 3rd polished rod 4 increases successively.
(3) beneficial effect
The utility model motor shaft, the connecting rod periphery at two ends is equipped with spline, has avoided namely having increased its bulk strength because using flat key to cause the Root Stress concentration phenomenon, and same diameter can bear bigger load; On the annular knurl bar commutator is installed, can be prevented that it from radially skidding, thereby improve overall precision; Whole motor shaft is multidiameter shaft form broad in the middle small in ends, has further improved bulk strength; The utility model motor shaft, simple in structure, easy to process, the intensity height can bear big load, and long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model motor shaft.
Embodiment
Consult Fig. 1, the utility model provides a kind of motor shaft, comprise the head rod 1, first polished rod 2, second polished rod 3, the 3rd polished rod 4, the 4th polished rod 5, annular knurl bar 6 and second connecting rod 7 that connect successively, be equipped with spline on head rod 1 and second connecting rod, 7 peripheries, annular knurl on the periphery of annular knurl bar 6, in the present embodiment, adopt straight knurling; This annular knurl is divided into three sections in the axial direction, i.e. first annular knurl that pitch is different, second annular knurl and the 3rd annular knurl; Be provided with strip groove 51 at the 4th polished rod 5 periphery upper edge axial directions, and this strip groove 51 is at least four and circumferentially uniform along axis; In the present embodiment, the diameter of head rod 1, first polished rod 2, second polished rod 3 and the 3rd polished rod 4 increases successively, reverse, the diameter of second connecting rod 7, annular knurl bar 6, the 4th polished rod 5 and the 3rd polished rod 4 increases successively, and namely integral body is multidiameter shaft form small in ends broad in the middle; For further improving intensity, adopt Quenching Treatment at the spline position of head rod and second connecting rod, generally adopt induction hardening; And this motor shaft is made by 35CrMo.
The utility model motor shaft, the connecting rod periphery at two ends is equipped with spline, has avoided namely having increased its bulk strength because using flat key to cause the Root Stress concentration phenomenon, and same diameter can bear bigger load; On the annular knurl bar commutator is installed, can be prevented that it from radially skidding, thereby improve overall precision; Whole motor shaft is multidiameter shaft form broad in the middle small in ends, has further improved bulk strength; The utility model motor shaft, simple in structure, easy to process, the intensity height can bear big load, and long service life.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. motor shaft, it is characterized in that: comprise the head rod (1), first polished rod (2), second polished rod (3), the 3rd polished rod (4), the 4th polished rod (5), annular knurl bar (6) and second connecting rod (7) that connect successively, be equipped with spline, annular knurl on the periphery of described annular knurl bar (6) on described head rod (1) and second connecting rod (7) periphery.
2. motor shaft as claimed in claim 1, it is characterized in that: described the 4th polished rod (5) periphery upper edge axial direction is provided with strip groove (51).
3. motor shaft as claimed in claim 2, it is characterized in that: described strip groove (51) is at least four and circumferentially uniform along axis.
4. motor shaft as claimed in claim 1, it is characterized in that: described annular knurl is straight knurling.
5. motor shaft as claimed in claim 1, it is characterized in that: the diameter of described head rod (1), first polished rod (2), second polished rod (3) and the 3rd polished rod (4) increases successively.
6. motor shaft as claimed in claim 1, it is characterized in that: the diameter of described second connecting rod (7), annular knurl bar (6), the 4th polished rod (5) and the 3rd polished rod (4) increases successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165618 CN203114872U (en) | 2013-04-03 | 2013-04-03 | Motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320165618 CN203114872U (en) | 2013-04-03 | 2013-04-03 | Motor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114872U true CN203114872U (en) | 2013-08-07 |
Family
ID=48895222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320165618 Expired - Fee Related CN203114872U (en) | 2013-04-03 | 2013-04-03 | Motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154105A (en) * | 2014-07-02 | 2014-11-19 | 池州扬帆微电机有限责任公司 | High-strength motor shaft |
| CN106812817A (en) * | 2015-12-01 | 2017-06-09 | 衡阳双雁运输机械有限公司 | A kind of left side shaft coupling |
-
2013
- 2013-04-03 CN CN 201320165618 patent/CN203114872U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154105A (en) * | 2014-07-02 | 2014-11-19 | 池州扬帆微电机有限责任公司 | High-strength motor shaft |
| CN106812817A (en) * | 2015-12-01 | 2017-06-09 | 衡阳双雁运输机械有限公司 | A kind of left side shaft coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20150403 |
|
| EXPY | Termination of patent right or utility model |