CN203201994U - Gear shaft - Google Patents
Gear shaft Download PDFInfo
- Publication number
- CN203201994U CN203201994U CN 201320214209 CN201320214209U CN203201994U CN 203201994 U CN203201994 U CN 203201994U CN 201320214209 CN201320214209 CN 201320214209 CN 201320214209 U CN201320214209 U CN 201320214209U CN 203201994 U CN203201994 U CN 203201994U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- small
- gear shaft
- cylindrical body
- gear
- 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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Abstract
The utility model discloses a gear shaft. The gear shaft comprises a shaft body, wherein the shaft body comprises a large cylinder, a middle-sized cylinder and a small cylinder the diameters of which sequentially become smaller in sequence; a large transition circular truncated cone is arranged between the large cylinder and the middle-sized cylinder; a small transition circular truncated cone is arranged between the middle-sized cylinder and the small cylinder; the shaft body also comprises a through hole penetrating through the shaft body; an oil groove communicated with the through hole is formed in the middle-sized cylinder; a key groove is formed in the small cylinder; a helical gear is arranged on the large cylinder in a position close to the outer end surface; a positioning groove is formed on the small cylinder. The gear shaft adopts curve transition, can prevent the phenomenon of stress concentration; the helical gear is arranged on the large cylinder, so that transmission is stable, and the output effect is good; and the gear shaft is also provided with wear-resistant coating, so that the service life is increased, and resource is saved.
Description
Technical field
The utility model relates to a kind of gear shaft.
Background technique
Gear shaft refers to support the mechanical parts that rotational parts also turns round to transmit motion, moment of torsion or moment of flexure therewith.It is shaft-like to be generally round metal, and each section can have different diameters.The part of doing rotation motion in the machine just is contained on the axle.
According to the difference of axis shape, axle can be divided into bent axle and d-axis two classes.Carrying situation according to axle can be divided into again: 1. rotating shaft, not only bear moment of flexure but also bear moment of torsion during work, and be modal axle in the machinery, as the axle in the various retarders etc.2. axle is used for supporting rotational parts and only bears moment of flexure and do not transmit moment of torsion, and some axle is rotated, and as the axle of railway vehicle etc., some axle is not then rotated, as the axle of supporting pulley etc.3. transmission shaft is mainly used to transmit moment of torsion and does not bear moment of flexure, as the long optical axis in the hoist mobile mechanism, the live axle of automobile etc.
Existing gear shaft structure design is unreasonable, and intensity is not high, the processing technology complexity, and working life is low.
The model utility content
(1) technical problem that will solve
The technical problems to be solved in the utility model provides a kind of gear shaft.
(2) technological scheme
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of gear shaft, comprise axis body, described axis body comprises the large cylinder that diameter sets gradually from big to small, middle cylindrical body, small cylinder, be provided with the great transition round platform between described large cylinder and the middle cylindrical body, be provided with small offence between cylindrical body and the small cylinder in described and cross round platform, comprise that also one runs through the through hole of described axis body, cylindrical body is provided with the oil groove that is communicated with described through hole in described, described small cylinder is provided with keyway, be provided with helical gear near the place, exterior edge face on the described large cylinder, described small cylinder is provided with locating slot.
Adopt arc transition between described great transition round platform and large cylinder and the middle cylindrical body.
Described small offence is crossed between round platform and middle cylindrical body and the small cylinder and is adopted arc transition.
Described helical gear is provided with wear resistant coating.
(3) beneficial effect
The utility model is compared to prior art, its beneficial effect is: the metal forming technology is applied to the manufacturing of gear-box gear shaft, reduce follow-up cutting, saved resource and processing technology is simple, good product quality, the manufacturing efficiency height can satisfy required precision, has reduced manufacture cost again; Adopt arc transition, can avoid the stress concentration phenomenon; Be provided with helical gear at large cylinder, stable drive, output effect is good, and is provided with wear resistant coating, improves working life, economizes on resources.
Description of drawings
Fig. 1 is the structural representation of gear shaft of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
A kind of gear shaft as shown in Figure 1, comprise axis body, described axis body comprises the large cylinder 1 that diameter sets gradually from big to small, middle cylindrical body 2, small cylinder 3, be provided with great transition round platform 4 between described large cylinder 1 and the middle cylindrical body 2, be provided with small offence between cylindrical body 2 and the small cylinder 3 in described and cross round platform 5, comprise that also one runs through the through hole 6 of described axis body, cylindrical body 2 is provided with the oil groove 7 that is communicated with described through hole 6 in described, described small cylinder 3 is provided with keyway 8, be provided with helical gear 9 near the place, exterior edge face on the described large cylinder 1, described small cylinder 3 is provided with locating slot 10.Adopt arc transition between described great transition round platform 4 and large cylinder 1 and the middle cylindrical body 2.Described small offence is crossed between round platform 5 and middle cylindrical body 2 and the small cylinder 3 and is adopted arc transition.Described helical gear 9 is provided with wear resistant coating.
The utility model is applied to the manufacturing of gear-box gear shaft with the metal forming technology, reduces follow-up cutting, has saved resource and processing technology is simple, good product quality, and the manufacturing efficiency height can satisfy required precision, has reduced manufacture cost again; Adopt arc transition, can avoid the stress concentration phenomenon; Be provided with helical gear at large cylinder, stable drive, output effect is good, and is provided with wear resistant coating, improves working life, economizes on resources.
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 (4)
1. gear shaft, comprise axis body, it is characterized in that: described axis body comprises large cylinder, middle cylindrical body, the small cylinder that diameter sets gradually from big to small, be provided with the great transition round platform between described large cylinder and the middle cylindrical body, be provided with small offence between cylindrical body and the small cylinder in described and cross round platform, comprise that also one runs through the through hole of described axis body, cylindrical body is provided with the oil groove that is communicated with described through hole in described, described small cylinder is provided with keyway, be provided with helical gear near the place, exterior edge face on the described large cylinder, described small cylinder is provided with locating slot.
2. gear shaft according to claim 1 is characterized in that: adopt arc transition between described great transition round platform and large cylinder and the middle cylindrical body.
3. gear shaft according to claim 1, it is characterized in that: described small offence is crossed between round platform and middle cylindrical body and the small cylinder and is adopted arc transition.
4. according to claim 2 or 3 described gear shafts, it is characterized in that: described helical gear is provided with wear resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214209 CN203201994U (en) | 2013-04-24 | 2013-04-24 | Gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320214209 CN203201994U (en) | 2013-04-24 | 2013-04-24 | Gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201994U true CN203201994U (en) | 2013-09-18 |
Family
ID=49146105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320214209 Expired - Fee Related CN203201994U (en) | 2013-04-24 | 2013-04-24 | Gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201994U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518405A (en) * | 2018-05-28 | 2018-09-11 | 河南森源电气股份有限公司 | A kind of transmission shaft and key drive mechanism |
-
2013
- 2013-04-24 CN CN 201320214209 patent/CN203201994U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518405A (en) * | 2018-05-28 | 2018-09-11 | 河南森源电气股份有限公司 | A kind of transmission shaft and key drive mechanism |
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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: 20130918 Termination date: 20150424 |
|
| EXPY | Termination of patent right or utility model |