CN203161802U - Precise high-speed motor shaft - Google Patents
Precise high-speed motor shaft Download PDFInfo
- Publication number
- CN203161802U CN203161802U CN 201320211360 CN201320211360U CN203161802U CN 203161802 U CN203161802 U CN 203161802U CN 201320211360 CN201320211360 CN 201320211360 CN 201320211360 U CN201320211360 U CN 201320211360U CN 203161802 U CN203161802 U CN 203161802U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- rod
- motor shaft
- knurling
- speed motor
- 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
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a precise high-speed motor shaft, which comprises a first connecting rod, a second connecting rod, a knurling rod, a polished rod and a third connecting rod in sequential connection, wherein straight knurling is respectively arranged on the first connecting rod and the knurling rod, external screw threads are arranged on the third connecting rod, a key groove is formed in the second connecting rod, and the key groove is inclined to an axial line of the second connecting rod. According to the precise high-speed motor shaft, annular clamp grooves are formed at two ends of the knurling rod, the mounting and the dismounting of a rotor are convenient, the straight knurling is arranged on the knurling rod, the rotor can be effectively prevented from generating the rotation relative to the shaft during the start and stop moment, through the arrangement of the inclined key groove, the mounting precision and the mounting intensity are improved, and the rotation of a rotating shaft is more stable. The precise high-speed motor shaft has the advantages that the structure is simple, the mounting is convenient and fast, the precision is high, and in addition, the rotating effect is good.
Description
Technical field
The utility model relates to a kind of axle, particularly a kind of high speed and precision motor shaft.
Background technique
High-speed electric expreess locomotive typically refers to the motor that rotating speed surpasses 10,000 commentaries on classics per minutes, they have the following advantages: the one, and the rotating speed height, thus power of motor density height, and volume is much smaller than common motor, effective economical with materials, the 2nd, link to each other with prime mover, cancelled traditional reducing gear, the transmission efficiency height, noise is little, the 3rd, because the high-speed electric expreess locomotive rotary inertia is little, so dynamically corresponding fast, traditional the installation inconvenience of high-speed electric expreess locomotive axle and rotating effect are poor.
The model utility content
(1) technical problem that will solve
The technical problems to be solved in the utility model provides a kind of quick and easy for installation, and the precision height, the high speed and precision motor shaft that rotating effect is good.
(2) technological scheme
For solving the problems of the technologies described above, the utility model provides a kind of high speed and precision motor shaft, comprise the head rod 1, second connecting rod 2, annular knurl bar 3, polished rod 4 and the 3rd connecting rod 5 that connect successively, be equipped with straight knurling on described head rod 1 and the annular knurl bar 3, described the 3rd connecting rod 5 is provided with outside thread, described second connecting rod 2 is provided with keyway 21, and described keyway 21 favours the axis of described second connecting rod 2.
Further, have angle a between the axis of described keyway 21 and described second connecting rod 2, described angle a is more than or equal to 10 degree and smaller or equal to 45 degree.
Further, described angle a is 30 degree.
Further, be provided with first annular slot 23 between described second connecting rod 2 and the described annular knurl bar 3.
Further, be provided with second annular slot 34 between described annular knurl bar 3 and the described polished rod 4.
(3) beneficial effect
The utility model high speed and precision motor shaft, be provided with annular slot at annular knurl bar two ends, make things convenient for installation and the dismounting of rotor, the annular knurl bar is provided with straight knurling, can prevent effectively that rotor from producing relative rotation with axle in the moment that starts and stop, keyway is obliquely installed, and has improved installation precision and intensity, and is more steady when rotating shaft is rotated; The utility model high speed and precision motor shaft, simple in structure, quick and easy for installation, precision height and rotating effect are good.
Description of drawings
Fig. 1 is the structural representation of the utility model high speed and precision motor shaft.
Embodiment
Consult Fig. 1, the utility model provides a kind of high speed and precision motor shaft, comprise the head rod 1, second connecting rod 2, annular knurl bar 3, polished rod 4 and the 3rd connecting rod 5 that connect successively, be equipped with straight knurling at head rod 1 and annular knurl bar 3, the 3rd connecting rod 5 is provided with outside thread, second connecting rod 2 is provided with keyway 21, and keyway 21 favours the axis of second connecting rod 2; Have angle a between the axis of keyway 21 and second connecting rod 2, this angle a is more than or equal to 10 degree and smaller or equal to 45 degree, and preferably more than or equal to 15 degree and smaller or equal to 40 degree, in the present embodiment, this angle a is 30 degree; Between second connecting rod 2 and annular knurl bar 3, be provided with first annular slot 23; Between annular knurl bar 3 and polished rod 4, be provided with second annular slot 34, be provided with screwed hole of centre in the end of head rod 1.
The utility model high speed and precision motor shaft, be provided with annular slot at annular knurl bar two ends, make things convenient for installation and the dismounting of rotor, the annular knurl bar is provided with straight knurling, can prevent effectively that rotor from producing relative rotation with axle in the moment that starts and stop, keyway is obliquely installed, and has improved installation precision and intensity, and is more steady when rotating shaft is rotated; The utility model high speed and precision motor shaft, simple in structure, quick and easy for installation, precision height and rotating effect are good.
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 (5)
1. high speed and precision motor shaft, it is characterized in that: comprise the head rod (1), second connecting rod (2), annular knurl bar (3), polished rod (4) and the 3rd connecting rod (5) that connect successively, be equipped with straight knurling on described head rod (1) and the annular knurl bar (3), described the 3rd connecting rod (5) is provided with outside thread, described second connecting rod (2) is provided with keyway (21), and described keyway (21) favours the axis of described second connecting rod (2).
2. high speed and precision motor shaft as claimed in claim 1 is characterized in that: have angle (a) between the axis of described keyway (21) and described second connecting rod (2), described angle (a) is more than or equal to 10 degree and smaller or equal to 45 degree.
3. high speed and precision motor shaft as claimed in claim 2 is characterized in that: described angle (a) is 30 degree.
4. high speed and precision motor shaft as claimed in claim 1 is characterized in that: be provided with first annular slot (23) between described second connecting rod (2) and the described annular knurl bar (3).
5. as claim 1 or 4 described high speed and precision motor shafts, it is characterized in that: be provided with second annular slot (34) between described annular knurl bar (3) and the described polished rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211360 CN203161802U (en) | 2013-04-23 | 2013-04-23 | Precise high-speed motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211360 CN203161802U (en) | 2013-04-23 | 2013-04-23 | Precise high-speed motor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161802U true CN203161802U (en) | 2013-08-28 |
Family
ID=49022988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320211360 Expired - Fee Related CN203161802U (en) | 2013-04-23 | 2013-04-23 | Precise high-speed motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840641A (en) * | 2016-04-29 | 2016-08-10 | 苏州鼎隆精密机械制造有限公司 | Slender shaft with spacing-positioned knurls |
-
2013
- 2013-04-23 CN CN 201320211360 patent/CN203161802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840641A (en) * | 2016-04-29 | 2016-08-10 | 苏州鼎隆精密机械制造有限公司 | Slender shaft with spacing-positioned knurls |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20140423 |