CN205136520U - Pass stable helical gear of power - Google Patents
Pass stable helical gear of power Download PDFInfo
- Publication number
- CN205136520U CN205136520U CN201520900274.6U CN201520900274U CN205136520U CN 205136520 U CN205136520 U CN 205136520U CN 201520900274 U CN201520900274 U CN 201520900274U CN 205136520 U CN205136520 U CN 205136520U
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- gear
- helical gear
- buckling groove
- joint
- 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 pass stable helical gear of power, its technical scheme main points are, comprising a gear body, be equipped with the round skewed tooth on the gear body outer lane, gear body center is equipped with the circular shape mounting hole, the both ends of mounting hole all are higher than the both sides surface of gear body, be equipped with two joint grooves that are used for the joint on the mounting hole inner wall, follow in the joint groove the mounting hole inner wall distributes, contained angle between the joint groove is 120. Being provided with two joint grooves that are 120 contained angles on the mounting hole inner wall, can passing the matched with pivot of joint groove in the middle of the helical gear under this kind of structure compares in ordinary spline joint in the joint groove, has more the advantage in the strength transmission of moment of torsion.
Description
Technical field
The utility model relates to a kind of gear, and more particularly, it relates to the stable helical gear of a kind of power transmission.
Background technique
Gear, as a kind of common power transmission mode, is widely used in the every field in production, life.The structural type of gear is varied, of a great variety, can classify, be divided into cylindrical gears, bevel gear, noncircular gear, tooth bar, worm and worm gear etc. by its profile according to its profile, tooth trace shape, surface, gear teeth place, manufacture method etc.; Spur gear, helical gear, herringbone gear, bevel gear, curved tooth cylindrical gear etc. are divided into by tooth trace shape.
Common spur gear enters engagement along the facewidth simultaneously, and thus produce impact shock noise, transmission is not steady.Cylindrical helical gear drive is then better than straight-tooth, and can gather tight centre distance for high-speed overload, also has the advantages such as transmitting torque is large, starting is steady, velocity ratio classification is meticulous simultaneously.
But when the existing helical gear commercially generally used is splined shaft cooperation transmission, the degree of depth of spline clamping is more shallow, although stressed comparatively stable, but has some limitations above the transmission of high pulling torque.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of high pulling torque stable output, clamping firmly helical gear.
For achieving the above object, the utility model provides following technological scheme: the helical gear that a kind of power transmission is stable, comprise gear, described gear outer ring is provided with a circle helical teeth, described gear central position is provided with circular mounting hole, and the two ends of described mounting hole are all higher than the both side surface of gear, and described mounting hole inwall is provided with two buckling grooves for clamping, described buckling groove distributes along described mounting hole inwall, and the angle between described buckling groove is 90 ° ~ 180 °.
The utility model is set to further: the internal diameter of described mounting hole and the width ratio of described buckling groove are 3.6 ~ 3.9.
The utility model is set to further: the cross section of described buckling groove is rectangle, and axially through along mounting hole.
The utility model is set to further: the angle between described buckling groove is 120 °.
The utility model is set to further: the both sides of described gear are provided with annular groove, and described annular groove is between described helical teeth and mounting hole.
Compared with prior art, the utility model has the advantage of, two buckling grooves in 120 ° of angles are provided with on mounting hole inwall, the rotating shaft that can match through buckling groove in the middle of the helical gear under this structure, buckling groove is compared to common spline clamping, the strength transmission of high pulling torque has more advantage, as the strength transmission above vehicle spindle.To have compared the strength transmission of single buckling groove, the structure of its pair again moment of torsion point to mix comparatively fixing.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the stable helical gear embodiment of the utility model power transmission;
Fig. 2 is the structural drawing of the stable helical gear embodiment mounting hole of the utility model power transmission.
Reference character: 1, gear; 11, annular groove; 2, helical teeth; 3, mounting hole; 31, buckling groove.
Embodiment
Referring to figs. 1 through Fig. 2, the helical gear embodiment that the utility model power transmission is stable is described further.
The stable helical teeth 2 of a kind of power transmission is taken turns, comprise gear 1, described gear 1 outer ring is provided with a circle helical teeth 2, the tooth top gradient of helical teeth 2 is 79 °, the heel gradient of helical teeth 2 is 73 °, gear mass central position is provided with circular mounting hole 3, the two ends of described mounting hole 3 are all higher than the both side surface of gear 1, two ends due to mounting hole 3 are all the structures protruded, mounting hole 3 under this structure can carry larger bearing capacity, more large, more long with the area of contact of second(-)motion shaft.
Described mounting hole 3 inwall is provided with two buckling grooves 31 for clamping, and the cross section of described buckling groove 31 is rectangle, and axially through along mounting hole 3.Due to the structure that buckling groove 31 is axially through, the buckling groove 31 under this structure can allow when installing the convex key above axle comparatively stable slip into inside.And more stable when rectangular structure clamping, driving force power transmission more strengthens, and can not produce relative slip.
Described buckling groove 31 distributes along described mounting hole 3 inwall, and the angle between described buckling groove 31 is 90 ° ~ 180 °, and the angle in the present embodiment preferably between described buckling groove 31 is 120 °.Two buckling grooves 31 can bear the moment of torsion output of rotation respectively, in the process of rotating, if angle is between the two too close, easily cause local pressure too serious and cause local deformation, if angle between the two too away from the power of moment of torsion will be caused concentrated not, causes dispersion, it is the most reasonable to be therefore limited between 90 ° ~ 180 °, and through linear test, on the angle of 120 °, effect is optimum.
The internal diameter of described mounting hole 3 and the width ratio of described buckling groove 31 are 3.6 ~ 3.9, shape due to buckling groove 31 is rectangular, its position offered is in mounting hole 3 inside, therefore effectively can carry out output in order to ensure mounting hole 3 to transmit, guarantee the generation that there will not be the situations such as off-axis, like this with regard to just needing, the internal diameter of mounting hole 3 is carried out corresponding restriction to the width of buckling groove 31, when having two buckling groove 31, its ratio is 3.6 ~ 3.9, for just in time, in the present embodiment, the internal diameter of mounting hole 3 is 85mm, the width of buckling groove 31 is 22mm.
The both sides of described gear 1 are provided with annular groove 11, and described annular groove 11 is between described helical teeth 2 and mounting hole 3.Annular groove 11 can effectively reduce the thickness of the body of gear, reduces the rotary inertia of gear itself, reduces the appearance of beating the phenomenons such as tooth.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the helical gear that a power transmission is stable, comprise gear, described gear outer ring is provided with a circle helical teeth, it is characterized in that: described gear central position is provided with circular mounting hole, the two ends of described mounting hole are all higher than the both side surface of gear, described mounting hole inwall is provided with two buckling grooves for clamping, and described buckling groove distributes along described mounting hole inwall, and the angle between described buckling groove is 90 ° ~ 180 °.
2. the helical gear that power transmission according to claim 1 is stable, is characterized in that: the internal diameter of described mounting hole and the width ratio of described buckling groove are 3.6 ~ 3.9.
3. the helical gear that power transmission according to claim 1 is stable, is characterized in that: the cross section of described buckling groove is rectangle, and axially through along mounting hole.
4. the helical gear that power transmission according to claim 3 is stable, is characterized in that: the angle between described buckling groove is 120 °.
5. the helical gear that power transmission according to claim 1 is stable, is characterized in that: the both sides of described gear are provided with annular groove, and described annular groove is between described helical teeth and mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520900274.6U CN205136520U (en) | 2015-11-12 | 2015-11-12 | Pass stable helical gear of power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520900274.6U CN205136520U (en) | 2015-11-12 | 2015-11-12 | Pass stable helical gear of power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136520U true CN205136520U (en) | 2016-04-06 |
Family
ID=55622317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520900274.6U Expired - Fee Related CN205136520U (en) | 2015-11-12 | 2015-11-12 | Pass stable helical gear of power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163069A (en) * | 2018-10-31 | 2019-01-08 | 金华市宇辰粉末冶金有限公司 | A kind of new gear |
-
2015
- 2015-11-12 CN CN201520900274.6U patent/CN205136520U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163069A (en) * | 2018-10-31 | 2019-01-08 | 金华市宇辰粉末冶金有限公司 | A kind of new gear |
| WO2020087942A1 (en) * | 2018-10-31 | 2020-05-07 | 金华市宇辰粉末冶金有限公司 | Novel gear |
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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: 20160406 Termination date: 20161112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |