CN204004290U - A kind of helical gear - Google Patents
A kind of helical gear Download PDFInfo
- Publication number
- CN204004290U CN204004290U CN201420089886.7U CN201420089886U CN204004290U CN 204004290 U CN204004290 U CN 204004290U CN 201420089886 U CN201420089886 U CN 201420089886U CN 204004290 U CN204004290 U CN 204004290U
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- helical gear
- gear
- tooth
- helical
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Abstract
The utility model provides a kind of helical gear, and its gear is from axial direction shape twist, this helical gear Hand of spiral be axis to dextrorotation, its spiral angle is 14.5-15.5 °, its number of teeth 11 is 9.This helical gear is by right-hand design, less by the quantity design of gear, thus engagement property is good, and stable drive, noise are little; Contact ratio is large, has reduced the load of every pair of gear, has improved the bearing capacity of gear; The minimum teeth number that does not produce undercut is few.
Description
Technical field
The utility model relates to a kind of helical gear.
Background technique
Gear, as a kind of common power transmission mode, is widely used in the every field of production, life.The structural type of gear is varied, of a great variety, can classify according to its profile, tooth trace formation, surface, gear teeth place, manufacture method etc., is divided into cylindrical gears, bevel gear, noncircular gear, tooth bar, worm and worm gear etc. by its profile; Be divided into spur gear, helical gear, herringbone gear, bevel gear, curved tooth cylindrical gear etc. by tooth trace shape.
Involute helical gear speed reducer, has the features such as volume is little, lightweight, bearing capacity is high, and efficiency is high, long service life, easy for installation, and institute's gas-distributing motor power range is wide, and velocity ratio classification is meticulous.Can be widely used on the equipment that every profession and trade need to slow down.Helical gear worm reduction gear adopts motor direct connection form, and structure is that one-level helical gear adds first-stage worm gear worm drive, is output as shaft-mountedly, has six kinds of basic installation forms.Can clockwise and anticlockwise running, helical gear adopts the hard flank of tooth, smooth running, bearing capacity is large, operating ambient temperature-10 DEG C～40 DEG C, it is large that this product and like product ratio have velocity variations scope, compact structure, the feature such as easy for installation.Can be widely used in the reducing gear of the various machinery such as metallurgy, mine, lifting, light industry, chemical industry, transport, building.
But existing helical gear designs inadequate hommization.
Model utility content
The helical gear that provides a kind of number of teeth less is provided order of the present utility model.
The utility model provides a kind of helical gear, and its gear is from axial direction shape twist, this helical gear Hand of spiral be axis to dextrorotation, its spiral angle is 14.5-15.5 °, its number of teeth 11 is 9.
Wherein, this helical gear tooth top diameter of a circle is 9.02-9.22cm, and tooth root diameter of a circle is 5.28-5.48cm.
Wherein, the diameter of this helical gear intermediate hole is 3.07-3.27cm.
Wherein, this helical gear height is 8.4-8.6cm.
Wherein, this helical gear normal module is 0.8, and pressure angle is 20 degree, and modification coefficient is 0.
Wherein, this helical gear public law line length 3.54-3.74cm.
Wherein, this helical gear spanning measure tooth number is 2, and tooth top radius is 0.1cm, and the radius of flute of tooth is also 0.1cm, and coupling gear is 45.
Wherein, this helical gear sub-center distance is 14.808-15.008cm.
This helical gear is by right-hand design, less by the quantity design of gear, thus engagement property is good, and stable drive, noise are little; Contact ratio is large, has reduced the load of every pair of gear, has improved the bearing capacity of gear; The minimum teeth number that does not produce undercut is few.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other objects, features and advantages of the present utility model can be become apparent, below especially exemplified by embodiment, and coordinate accompanying drawing, be described in detail as follows.
Brief description of the drawings
Fig. 1 is helical gear schematic diagram of the present invention;
Fig. 2 is the helical gear plan view shown in Fig. 1;
Fig. 3 is the helical gear sectional view shown in Fig. 1.
Embodiment
Technological means and effect of taking for reaching predetermined model utility object for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to helical gear embodiment, structure, feature and effect thereof according to the utility model proposes, be described in detail as follows.
Be the helical gear structural representation of the utility model as shown in Figure 1 to Figure 3, the utility model is actual is a kind of involute helical gear speed reducer, when the utility model helical gear engages with helical gear, Line of contact on the flank of tooth is by short elongated, shortened by long again, impact while having reduced transmission and noise, improved transmission stability, and helical gear of the present utility model can be for high-speed drive.
The utility model helical gear 10 can be regarded as twists spur gear and form as turning round fried dough twist one, helical gear gear teeth shape is helix shape from axial direction, the Hand of spiral of this helical gear 10 be axis to dextrorotation, its spiral angle is 14.5-15.5 °, is preferably 15 °; Its number of teeth 11 is 9; The diameter of phi 1 of the top circle of this helical gear 10 is 9.02-9.22cm, is preferably 9.12cm; The diameter of phi 2 of root circle is 5.28-5.4-8cm, is preferably 5.38cm; The diameter of phi 3 of the intermediate hole 12 of helical gear 10 is 3.07-3.27cm, is preferably 3.17cm; The height H of helical gear 10 is 8.4-8.6cm, is preferably 8.5cm; The normal module of this helical gear 10 is 0.8, and pressure angle is 20 degree, and modification coefficient is 0, and public law line length 3.54-3.74cmn, is preferably 3.64cm; Spanning measure tooth number is 2, and tooth top radius R 1 is 0.1cm, and radius of flute of tooth R2 is also 0.1cm, and coupling gear is 45, and sub-center, apart from being 14.808-15.008cm, is preferably 14.908cm.
This helical gear is by right-hand design, less by the quantity design of gear, thus engagement property is good, and stable drive, noise are little; Contact ratio is large, has reduced the load of every pair of gear, has improved the bearing capacity of gear; The minimum teeth number that does not produce undercut is few.
Claims (2)
1. a helical gear, its gear, from axial direction shape twist, is characterized in that: this helical gear Hand of spiral be axis to dextrorotation, its spiral angle is 14.5-15.5 °, its number of teeth 11 is 9; This helical gear tooth top diameter of a circle is 9.02-9.22cm, and tooth root diameter of a circle is 5.28-5.48cm; The diameter of this helical gear intermediate hole is 3.07-3.27cm; This helical gear height is 8.4-8.6cm; This helical gear public law line length 3.54-3.74cm; This helical gear sub-center distance is 14.808-15.008cm; This helical gear normal module is 0.8, and pressure angle is 20 degree, and modification coefficient is 0.
2. helical gear according to claim 1, is characterized in that: this helical gear spanning measure tooth number is 2, and tooth top radius is 0.1cm, and the radius of flute of tooth is also 0.1cm, and coupling gear is 45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089886.7U CN204004290U (en) | 2014-03-03 | 2014-03-03 | A kind of helical gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089886.7U CN204004290U (en) | 2014-03-03 | 2014-03-03 | A kind of helical gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004290U true CN204004290U (en) | 2014-12-10 |
Family
ID=52044293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089886.7U Expired - Fee Related CN204004290U (en) | 2014-03-03 | 2014-03-03 | A kind of helical gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004290U (en) |
-
2014
- 2014-03-03 CN CN201420089886.7U patent/CN204004290U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160303 |