CN206377232U - A kind of forward gear - Google Patents
A kind of forward gear Download PDFInfo
- Publication number
- CN206377232U CN206377232U CN201720009307.7U CN201720009307U CN206377232U CN 206377232 U CN206377232 U CN 206377232U CN 201720009307 U CN201720009307 U CN 201720009307U CN 206377232 U CN206377232 U CN 206377232U
- Authority
- CN
- China
- Prior art keywords
- groove
- arcwall
- gear
- hole
- forward 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 is related to a kind of forward gear, includes the gear of rounded shape, it is characterised in that：Circular connection through hole is provided with the gear, the extension of circle connection through hole is provided with the round boss raised up, the first reinforcement groove and second is provided with round boss and strengthens groove, it is 0.43 that the circle, which connects the diameter of through hole and the ratio of the diameter of gear,；The inwall of circle connection through hole is provided with annular strengthening groove, and annular strengthening groove includes the first arcwall and the second arcwall being sequentially connected, and the radian of first arcwall is more than the radian of the second arcwall；The utility model is：The ratio of the diameter of circle connection through hole and the diameter of gear is more than under the cooperation of the radian of the second arcwall for the radian of 0.43 and first arcwall, when the forward gear is extruded by external force in use, it is not in that fracture or metaboly occur to ensure forward gear, bulk strength is stronger, it is ensured that the service life of forward gear.
Description
Technical field
The utility model is related to technical field of automobile parts, especially a kind of forward gear.
Background technology
At present, when existing forward gear is extruded by external force in use, fracture occurs in forward gear
Or metaboly occurs, bulk strength is poor, and service life cannot be guaranteed.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of high intensity and ensures to use the longevity
The forward gear of life.
What the technical solution of the utility model was realized in：A kind of forward gear, includes the gear sheet of rounded shape
Body, it is characterised in that：Circular connection through hole is provided with the gear, the extension of the circular connection through hole sets oriented
The first reinforcement groove and second is provided with upper raised round boss, the round boss and strengthens groove, the circular connection
The ratio of the diameter of through hole and the diameter of gear is 0.43；The inwall of the circular connection through hole is provided with annular reinforcement
Groove, the annular strengthening groove includes the first arcwall and the second arcwall being sequentially connected, and the radian of first arcwall is more than
The radian of second arcwall, first arcwall is set towards round boss；The junction of the round boss and gear
For cambered surface.
By using above-mentioned technical proposal, the ratio of the diameter of circle connection through hole and the diameter of gear is 0.43
It is more than with the radian of first arcwall under the cooperation of the radian of the second arcwall, the forward gear is in use by outer
When power is extruded, it is ensured that forward gear is not in that fracture or metaboly occur, and bulk strength is stronger, it is ensured that drive shift tooth
The service life of wheel.If the ratio of the diameter of circle connection through hole and the diameter of gear is less than 0.43 and first arc
The radian of shape wall is more than under the cooperation of the radian of the second arcwall, when the forward gear is extruded by external force in use,
Metaboly occurs in forward gear, and bulk strength is poor so that the service life of forward gear cannot be guaranteed.
If the circle connection through hole diameter and gear diameter ratio be more than 0.43 and first arcwall radian it is big
Under the radian of the second arcwall coordinates, when the forward gear is extruded by external force in use, forward gear meeting
There is phenomenon of rupture, bulk strength is poor so that the service life of forward gear cannot be guaranteed.So the circle is even
The radian that the ratio of the diameter in hole and the diameter of gear is connected for 0.43 and first arcwall is more than the second arcwall
Radian is relatively reasonable under coordinating, when the forward gear is extruded by external force in use, it is ensured that forward gear will not
Appearance is broken or metaboly occurs, and bulk strength is stronger, it is ensured that the service life of forward gear.
The utility model is further arranged to：The groove depth of the first reinforcement groove and the ratio of thickness of round boss are
0.37；Described second ratio for strengthening the thickness of the groove depth of groove and round boss is 0.37.
Preferably：It is described first reinforcement groove groove width from bottom land toward notch at become larger；Described second strengthens groove
Groove width from bottom land toward notch at become larger.
By using above-mentioned technical proposal, the bulk strength of round boss is further improved, is also further increased
The bulk strength of forward gear.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model embodiment structure schematic top plan view；
Fig. 2 is A-A in Fig. 1 to structure sectional view.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
As shown in Fig. 1-Fig. 2, the utility model discloses a kind of forward gear, include the gear of rounded shape
1, in the utility model specific embodiment, circular connection through hole 2 is provided with the gear 1, the circular connection is logical
The extension in hole 2, which is provided with the round boss 3 raised up, the round boss 3, is provided with the first reinforcement groove 31 and second
Strengthen groove 32, the diameter H1 and the diameter H2 of gear 1 of the circular connection through hole 2 ratio are 0.43；The circle
Connection through hole 2 is provided with annular strengthening groove 21, and the annular strengthening groove 21 includes the first arcwall 211 for being sequentially connected and the
Two arcwalls 212, the radian of first arcwall 211 is more than the radian of the second arcwall 212, the direction of the first arcwall 211
Round boss 3 is set；The junction of the round boss 3 and gear 1 is cambered surface 4.
By using above-mentioned technical proposal, the ratio of the diameter of circle connection through hole and the diameter of gear is 0.43
It is more than with the radian of first arcwall under the cooperation of the radian of the second arcwall, the forward gear is in use by outer
When power is extruded, it is ensured that forward gear is not in that fracture or metaboly occur, and bulk strength is stronger, it is ensured that drive shift tooth
The service life of wheel.If the ratio of the diameter of circle connection through hole and the diameter of gear is less than 0.43 and first arc
The radian of shape wall is more than under the cooperation of the radian of the second arcwall, when the forward gear is extruded by external force in use,
Metaboly occurs in forward gear, and bulk strength is poor so that the service life of forward gear cannot be guaranteed.
If the circle connection through hole diameter and gear diameter ratio be more than 0.43 and first arcwall radian it is big
Under the radian of the second arcwall coordinates, when the forward gear is extruded by external force in use, forward gear meeting
There is phenomenon of rupture, bulk strength is poor so that the service life of forward gear cannot be guaranteed.So the circle is even
The radian that the ratio of the diameter in hole and the diameter of gear is connected for 0.43 and first arcwall is more than the second arcwall
Radian is relatively reasonable under coordinating, when the forward gear is extruded by external force in use, it is ensured that forward gear will not
Appearance is broken or metaboly occurs, and bulk strength is stronger, it is ensured that the service life of forward gear.
In the utility model specific embodiment, described first strengthens the groove depth L1 of groove 31 and the thickness of round boss 3
L3 ratio is 0.37；Described second ratio for strengthening the groove depth L2 of the groove 32 and thickness L3 of round boss 3 is 0.37.
In the utility model specific embodiment, it is described first reinforcement groove 31 groove width from bottom land toward notch at gradually become
Greatly；It is described second reinforcement groove 32 groove width from bottom land toward notch at become larger.
By using above-mentioned technical proposal, the bulk strength of round boss is further improved, is also further increased
The bulk strength of forward gear.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of forward gear, includes the gear of rounded shape, it is characterised in that：Circle is provided with the gear
Shape connects through hole, and the extension of the circular connection through hole, which is provided with the round boss raised up, the round boss, to be set
There is the first reinforcement groove and second to strengthen groove, the circle connects the diameter of through hole and the ratio of the diameter of gear is
0.43；The inwall of the circular connection through hole is provided with annular strengthening groove, and the annular strengthening groove includes first be sequentially connected
Arcwall and the second arcwall, the radian of first arcwall are more than the radian of the second arcwall, first arcwall direction circle
Shape boss is set；The junction of the round boss and gear is cambered surface.
2. a kind of forward gear according to claim 1, it is characterised in that：Described first strengthens the groove depth and circle of groove
The ratio of the thickness of shape boss is 0.37；Described second ratio for strengthening the thickness of the groove depth of groove and round boss is 0.37.
3. a kind of forward gear according to claim 1, it is characterised in that：Described first strengthens the groove width of groove by groove
Bottom is toward becoming larger at notch；It is described second reinforcement groove groove width from bottom land toward notch at become larger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720009307.7U CN206377232U (en) | 2017-01-05 | 2017-01-05 | A kind of forward gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720009307.7U CN206377232U (en) | 2017-01-05 | 2017-01-05 | A kind of forward gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206377232U true CN206377232U (en) | 2017-08-04 |
Family
ID=59404739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720009307.7U Expired - Fee Related CN206377232U (en) | 2017-01-05 | 2017-01-05 | A kind of forward gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206377232U (en) |
-
2017
- 2017-01-05 CN CN201720009307.7U patent/CN206377232U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317600 Zhejiang Yuhuan Taizhou automobile and Motorcycle Industrial Park Patentee after: YUHUAN KINGTIME MACHINERY FORGING Co.,Ltd. Address before: 318000 Yuhuan County automobile and motorcycle industrial park, Taizhou, Zhejiang Patentee before: YUHUAN KINGTIME MACHINERY FORGING Co.,Ltd. |
|
| 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: 20170804 Termination date: 20220105 |