CN204004289U - A kind of wheel of the shearer haulage with three-arc flank profil - Google Patents
A kind of wheel of the shearer haulage with three-arc flank profil Download PDFInfo
- Publication number
- CN204004289U CN204004289U CN201320853811.7U CN201320853811U CN204004289U CN 204004289 U CN204004289 U CN 204004289U CN 201320853811 U CN201320853811 U CN 201320853811U CN 204004289 U CN204004289 U CN 204004289U
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- arc
- wheel
- tooth
- draught wheel
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Abstract
The utility model relates to a kind of wheel of the shearer haulage with three-arc flank profil.Comprise tooth top and tooth root, be characterized in: the tooth curve of this draught wheel is made up of three sections of circular arcs, these three sections of circular arcs are followed successively by the first dome arc (R1), the second dome arc (R2) and the 3rd concave circular arc (R3) from tooth top to tooth root.Circular arc profile draught wheel normal radius of curvature of the present utility model is larger than the normal radius of curvature of the involute profile of same size and cycloidal profile, can strengthen the fatigue strength of the gear teeth, can avoid again undercut, avoid three teeth of draught wheel to engage the draught wheel stuck phenomenon causing simultaneously, and can reduce the relative sliding in two tooth engagement processes, increase the working life of pin row and draught wheel.
Description
Technical field
The utility model relates to a kind of wheel of the shearer haulage with three-arc flank profil.
Background technique
Under coal mine when working surface coal mining machine coal mining activity, be at present to realize walking by trailer system, this trailer system comprises the pin row series of electric drive draught wheel and the scraper conveyor of coal winning machine.This draught wheel and 126mm pitch six alligator rows' pin tooth engagement driving, due to the restriction of pitch, the modulus of the draught wheel gear teeth is also restricted, and this modulus value is 40 at present, limit the lifting of gear teeth intensity, draught wheel flank profil is cycloid, and while engagement at pin row pitch variation place, relative sliding is large, and the gear teeth rate of wear is fast, fatigue strength is low, working life is low, can not meet colliery less trouble, the requirement of high efficiency, high reliability.
Model utility content
The purpose of this utility model is to provide a kind of wheel of the shearer haulage with three-arc flank profil, can strengthen the fatigue strength of the gear teeth, increases the service life.
A kind of wheel of the shearer haulage with three-arc flank profil, comprise tooth top and tooth root, its specialization is: the tooth curve of this draught wheel is made up of three sections of circular arcs, and these three sections of circular arcs are followed successively by the first dome arc, the second dome arc and the 3rd concave circular arc from tooth top to tooth root.
Wherein the first dome arc, its arc length accounts for the 30%～35%, second dome arc of three sections of circular arc overall lengths, and its arc length accounts for 30%～35% of three sections of circular arc overall lengths.
Circular arc profile draught wheel normal radius of curvature of the present utility model is larger than the normal radius of curvature of the involute profile of same size and cycloidal profile, can strengthen the fatigue strength of the gear teeth, can avoid again undercut, avoid three teeth of draught wheel to engage the draught wheel stuck phenomenon causing simultaneously, and can reduce the relative sliding in two tooth engagement processes, increase the working life of pin row and draught wheel.
Brief description of the drawings
Accompanying drawing 1 is the three-arc flank profil 3 of the gear teeth in the utility model draught wheel and the contrast schematic diagram of involute profile 2 and cycloidal profile 1;
Accompanying drawing 2 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, 2, the utility model is a kind of wheel of the shearer haulage with three-arc flank profil, comprise tooth top and tooth root, the tooth curve of this draught wheel is made up of three sections of circular arcs, and these three sections of circular arcs are followed successively by the first dome arc R1, the second dome arc R2 and the 3rd concave circular arc R3 from tooth top to tooth root.Wherein the first dome arc R1, its arc length accounts for 30%, the second dome arc R2 of circular arc overall length, and its arc length accounts for 30%, the three concave circular arc R3 of circular arc overall length, and its arc length accounts for 40% of circular arc overall length.
The utility model has designed a kind of coal winning machine three-arc flank profil 3 draught wheels, the tooth curve of this draught wheel is three-arc curve, formed by three sections of circular arcs, the normal radius of curvature of three-arc curve is larger than the normal radius of curvature of the involute profile of identical parameters 2 and cycloidal profile 1, three-arc curve can reduce draught wheel and enter the pressure angle while engagement at maximum pitch place, pressure angle can reduce again draught wheel and throw off at minimum pitch place time, increasing modulus simultaneously, the modulus m value of the gear teeth is greater than 48, strengthen fatigue strength, increase the service life.
Coal winning machine three-arc flank profil of the present utility model 3 draught wheels, the tooth curve that is characterized in draught wheel is three-arc curve, is made up of three sections of circular arcs, and tooth top part is the first dome arc R1, the second dome arc R2, and tooth root part is the 3rd concave circular arc R3.Dome arc is mesh regional, and concave circular arc can be avoided undercut, avoids three teeth of draught wheel to engage simultaneously and cause draught wheel stuck phenomenon.
As shown in Figure 2, adopt three-arc curvilinear tooth profile of the present utility model can better adapt to the engagement of pin row at pitch variation place, the relative sliding of the draught wheel gear teeth and pinwheel while reducing engagement, reduce wear, can reduce draught wheel and enter the pressure angle while engagement at maximum pitch place, pressure angle can reduce again draught wheel and throw off at minimum pitch place time, increases the service life.
Claims (1)
1. the wheel of the shearer haulage with three-arc flank profil, comprise tooth top and tooth root, it is characterized in that: the tooth curve of this draught wheel is made up of three sections of circular arcs, these three sections of circular arcs are followed successively by the first dome arc (R1), the second dome arc (R2) and the 3rd concave circular arc (R3) from tooth top to tooth root;
Wherein the first dome arc (R1), its arc length accounts for the 30% ~ 35%, second dome arc (R2) of three sections of circular arc overall lengths, and its arc length accounts for 30% ~ 35% of three sections of circular arc overall lengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853811.7U CN204004289U (en) | 2013-12-23 | 2013-12-23 | A kind of wheel of the shearer haulage with three-arc flank profil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853811.7U CN204004289U (en) | 2013-12-23 | 2013-12-23 | A kind of wheel of the shearer haulage with three-arc flank profil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004289U true CN204004289U (en) | 2014-12-10 |
Family
ID=52044292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320853811.7U Expired - Fee Related CN204004289U (en) | 2013-12-23 | 2013-12-23 | A kind of wheel of the shearer haulage with three-arc flank profil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191570A (en) * | 2017-06-07 | 2017-09-22 | 天津工业大学 | The three-arc tooth Profile Design of continuous conjugation cup or carnival hat shape harmonic gear |
-
2013
- 2013-12-23 CN CN201320853811.7U patent/CN204004289U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191570A (en) * | 2017-06-07 | 2017-09-22 | 天津工业大学 | The three-arc tooth Profile Design of continuous conjugation cup or carnival hat shape harmonic gear |
| CN107191570B (en) * | 2017-06-07 | 2023-08-15 | 天津工业大学 | Three-arc tooth profile design of continuous conjugate cup-shaped or top-hat-shaped harmonic 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: 20141210 Termination date: 20161223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |