CN101118010A - Double helix angle beveled wheel engage assistant - Google Patents
Double helix angle beveled wheel engage assistant Download PDFInfo
- Publication number
- CN101118010A CN101118010A CNA2007100924851A CN200710092485A CN101118010A CN 101118010 A CN101118010 A CN 101118010A CN A2007100924851 A CNA2007100924851 A CN A2007100924851A CN 200710092485 A CN200710092485 A CN 200710092485A CN 101118010 A CN101118010 A CN 101118010A
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- helix angle
- gear
- tooth
- double helix
- tooth surface
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Abstract
The present invention relates to a double helix angle helical gear meshing pair, which relates to a non-backlash or backlash adjustable precision gear meshing pair widely used in each field of the industry. The left tooth surface and the right tooth surface of a gear are respectively helical gear tooth surfaces with different helix angles, the helix angles of the left gear tooth surface and the right gear tooth surface of the gear are different, which form certain tapered angles along a gear axle line, the relative positions of mutually meshed gears are adjusted along the axle line to adjust the meshing backlash, and the precision transmission is realized. The double helix angle helical gear is formed through processing twice, thus the tooth thickness becomes thin, a tooth space becomes wide, the manufacturability is good, because the tooth surface of the helical gear is meshed, the present invention has the advantage of helical gear meshing transmission, large overlap coefficient, and high carrying capacity, thus being suitable for the high-speed input in the precision transmission.
Description
Technical field
The present invention relates to the no sideshake or the adjustable precision drive gear engagement pair of sideshake of extensive use.
Background technique
In traditional precision gear transmission, in order to realize disappearing the crack transmission or adjust meshing backlass, technological scheme commonly used has: adjust centre distance; Spring-loaded split gear; The equipment gear Transmitted chains of anti-return difference; The split gear that transverse tooth thickness is adjustable; The angular wheel of radial shift or the like way, relevant document has patent: US3174356, US3171212, US5400672 etc.But above technological scheme complex structure, the assembling difficulty, and the angular wheel of radial shift usually needs lathe is reequiped, manufacturability is poor.Existing beveled wheel engage assistant is all identical with the helix angle size owing to the helix angle rotation direction, thereby is difficult to realize transferring the crack.
Summary of the invention
The present invention has proposed a kind of double helix angle beveled wheel engage assistant for overcoming above-mentioned the deficiencies in the prior art, can realize adjustable backlash or not have the sideshake transmission; Can utilize existing equipment production, good manufacturability.
Technology contents of the present invention is: a kind of double helix angle beveled wheel engage assistant, comprise intermeshing two gears, it is characterized in that: the left and right sides flank of tooth of each gear teeth of gear is respectively the helix angle helical gear flank of tooth inequality, and the left and right sides flank of tooth forms certain cone angle; The left and right tooth surface helix angle rotation direction of each gear teeth can be identical, also can be different, and the size of helix angle can be zero, also can be non-vanishing, but be not zero simultaneously; The flank of tooth that is meshed with it is that the helix angle rotation direction is opposite, the big or small identical helical gear flank of tooth of helix angle, or the mesh tooth face helix angle is zero simultaneously; Can be the external gear pump pair, also can be internal gear pair; Because the gear teeth left and right tooth surface helix angle difference of gear forms certain cone angle along Gear axis, pitch wheel is adjusted relative position along axis can adjust meshing backlass.
Double helix angle beveled wheel involved in the present invention adopts two-step method to process, and the first step is first flank of tooth of the processing gear teeth, and second step was to continue second flank of tooth of processing on the flank of tooth that has processed.
Because double helix angle beveled wheel is to process by twice, so the transverse tooth thickness attenuation, teeth groove broadens, and the centre distance of double helix angle beveled wheel engage assistant and tooth depth need reduce.
The relative axial position of intermeshing double helix angle beveled wheel pair can be regulated by the spring of axial direction, or transfers the crack pad to regulate at axial direction.
Compared with the prior art the present invention has following technique effect:
The left and right sides flank of tooth of each gear teeth of gear is respectively the helix angle helical gear flank of tooth inequality, and the left and right sides flank of tooth forms certain cone angle, can adjust meshing backlass by the relative position of adjusting gear.The processing of this gear comprises roughing and fine finishing, all can adopt the helical gear method of processing to carry out, and the processing helical gear has been ripe processing method; External gear all can adopt the method for form grinding to carry out in it; Therefore, has favorable manufacturability.Owing to be that the helical gear flank of tooth participates in engagement, therefore, have the advantage of helical gear engagement driving, overlap coefficient is big, and the bearing capacity height is suitable for the characteristics that the high speed in the precision drive is imported.
Description of drawings
Fig. 1 is a double helix angle beveled wheel outer gearing schematic representation.
Fig. 2 is the opposite double helix angle beveled wheel gear teeth meshing schematic representation of a pair of flank of tooth helix angle rotation direction.
Fig. 3 is zero for a pair of flank of tooth helix angle, the double helix angle beveled wheel gear teeth meshing schematic representation that another flank of tooth helix angle is non-vanishing.
Fig. 4 is that a pair of flank of tooth helix angle rotation direction is identical, but the double helix angle beveled wheel gear teeth meshing schematic representation that helix angle varies in size.
Among the figure:
1, the 2-double helix angle beveled wheel
3, the double helix angle beveled wheel gear teeth that 4-helix angle rotation direction is opposite
5,6-flank of tooth helix angle is zero to be the straight-tooth flank of tooth, the non-vanishing double helix angle beveled wheel gear teeth of another flank of tooth helix angle
7,8-helix angle rotation direction is identical, but the double helix angle beveled wheel gear teeth that helix angle varies in size
Embodiment
As shown in Figure 1, gear 1 is respectively the different double helix angle beveled wheel of helix angle rotation direction with gear 2, the left-handed helical tooth flank engagement of the right hand helix flank of tooth of gear 1 and gear 2; The right hand helix flank engagement of gear 1 left-handed helical tooth flank and gear 2.Because its helix angle rotation direction difference, so each gear teeth is tapered along axial direction, therefore adjusts gear 1 and gear 2 relative position at axial direction, then can adjust the meshing backlass of gear 1 and gear 2, realizes precision drive.
Fig. 2 is the opposite double helix angle beveled wheel gear teeth meshing of flank of tooth helix angle rotation direction, and the double helix angle beveled wheel gear teeth 3,4 that the helix angle rotation direction is opposite are meshing with each other, and the helix angle size of the gear teeth 3 and the gear teeth 4 flank of tooth identical, that rotation direction is opposite meshes.Among Fig. 3, a flank of tooth helix angle is zero, and the non-vanishing double helix angle beveled wheel gear teeth 5,6 of another flank of tooth helix angle mesh.Among Fig. 4, a pair of flank of tooth helix angle rotation direction is identical, but the double helix angle beveled wheel gear teeth 7,8 that helix angle varies in size mesh, and the helix angle size of the gear teeth 7 and the gear teeth 8 flank of tooth identical, that rotation direction is opposite meshes.
Claims (4)
1. double helix angle beveled wheel engage assistant, comprise intermeshing two gears, it is characterized in that: the left and right sides flank of tooth of each gear teeth of gear is respectively the helix angle helical gear flank of tooth inequality, two flank of tooth form certain cone angle along Gear axis, and pitch wheel is adjusted relative position along axis can adjust meshing backlass.
2. double helix angle beveled wheel engage assistant according to claim 1 is characterized in that: when the left and right tooth surface helix angle rotation direction of each gear teeth was inequality, the size of helix angle was also different.
3. double helix angle beveled wheel engage assistant according to claim 1 is characterized in that: when the left and right tooth surface helix angle rotation direction of each gear teeth is inequality, and helix angle big or small identical.
4. double helix angle beveled wheel engage assistant according to claim 1 is characterized in that: when the left and right tooth surface helix angle rotation direction of each gear teeth is identical, and the varying in size of helix angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100924851A CN101118010A (en) | 2007-07-27 | 2007-07-27 | Double helix angle beveled wheel engage assistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100924851A CN101118010A (en) | 2007-07-27 | 2007-07-27 | Double helix angle beveled wheel engage assistant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101118010A true CN101118010A (en) | 2008-02-06 |
Family
ID=39054234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100924851A Pending CN101118010A (en) | 2007-07-27 | 2007-07-27 | Double helix angle beveled wheel engage assistant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101118010A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653016A (en) * | 2012-04-30 | 2012-09-05 | 中煤张家口煤矿机械有限责任公司 | Method for machining involute gear with different helix angles on left tooth surface and right tooth surface |
| CN102913608A (en) * | 2012-10-31 | 2013-02-06 | 浙江大学 | Bevel gears with variable helical angles |
| CN105631131A (en) * | 2015-12-29 | 2016-06-01 | 重庆大学 | Form grinding axial modification error compensation method |
-
2007
- 2007-07-27 CN CNA2007100924851A patent/CN101118010A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653016A (en) * | 2012-04-30 | 2012-09-05 | 中煤张家口煤矿机械有限责任公司 | Method for machining involute gear with different helix angles on left tooth surface and right tooth surface |
| CN102653016B (en) * | 2012-04-30 | 2014-01-08 | 中煤张家口煤矿机械有限责任公司 | Method for machining involute gear with different helix angles on left tooth surface and right tooth surface |
| CN102913608A (en) * | 2012-10-31 | 2013-02-06 | 浙江大学 | Bevel gears with variable helical angles |
| CN105631131A (en) * | 2015-12-29 | 2016-06-01 | 重庆大学 | Form grinding axial modification error compensation method |
| CN105631131B (en) * | 2015-12-29 | 2019-03-22 | 重庆大学 | A kind of plunge grinding axial modification error compensating method |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080206 |