CN204041918U - A kind of hardening type band sun gear semiaxis - Google Patents
A kind of hardening type band sun gear semiaxis Download PDFInfo
- Publication number
- CN204041918U CN204041918U CN201420386092.7U CN201420386092U CN204041918U CN 204041918 U CN204041918 U CN 204041918U CN 201420386092 U CN201420386092 U CN 201420386092U CN 204041918 U CN204041918 U CN 204041918U
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- China
- Prior art keywords
- semiaxis
- sun gear
- quench
- type band
- hardening type
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Abstract
The double reduction that the utility model relates to wheel rim deceleration device drives vehicle bridge technical field, refer in particular to a kind of hardening type band sun gear semiaxis, comprise semiaxis, be arranged at the sun gear of semiaxis one end and be arranged at the spline of the semiaxis the other end, described semiaxis and sun gear integrally formed, there is quench-hardened case at solar wheeling tooth wheel surface, it is characterized in that: described quench-hardened case is at least 1.5 millimeters at the thickness in tooth root portion.The utility model is by the quench-hardened case Thickness Design of solar wheeling tooth root more than 1.5 millimeters, and comparing tooth root portion quench-hardened case thickness, not reach the sun gear resistance to flexure of this thickness higher.
Description
Technical field
The double reduction that the utility model relates to wheel rim deceleration device drives vehicle bridge technical field, refers in particular to a kind of for driving the hardening type band sun gear semiaxis of vehicle bridge.
Background technique
Vehicle transmission semiaxis is the strength member of automobile transmitting torque, and automobile sun gear is the important component part of wheel reductor.When double reduction automobilism, the moment of torsion that motor exports passes to automobile axle shaft through main reducing gear, be delivered on wheel reductor by automobile axle shaft again, wheel reductor transfers torque on wheel, propelling vehicle advances and falls back, when starting or go up a slope, moment of torsion is very large, particularly braking or traveling are on the road surface of jolting, operating conditions is more severe, this just requires that material therefor has enough resistance to flexures, due to the restriction of solar wheeling tooth root architecture and current processing technology, tooth root portion hardened layer is made to become the weak part of whole gear hardened layer, namely tooth root case depth is the whole the most shallow place of tooth, and tooth root case depth affects shock resistance and the bending fatigue strength of whole gear.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of hardening type band sun gear semiaxis.
Technical problem to be solved in the utility model realizes by the following technical solutions.
A kind of hardening type band sun gear semiaxis, comprise semiaxis, be arranged at the sun gear of semiaxis one end and be arranged at the spline of the semiaxis the other end, described semiaxis and sun gear integrally formed, there is quench-hardened case at solar wheeling tooth wheel surface, it is characterized in that: described quench-hardened case is at least 1.5 millimeters at the thickness in tooth root portion.The utility model is by the quench-hardened case Thickness Design of solar wheeling tooth root more than 1.5 millimeters, and comparing tooth root portion quench-hardened case thickness, not reach the sun gear resistance to flexure of this thickness higher.
As preferably, the thickness of described quench-hardened case in tooth root portion is 3.1 ~ 3.5 millimeters.For heavy-duty car, the moment of torsion that sun gear bears comparatively general car is larger, so need thicker tooth root portion quench-hardened case, 3.1 ~ 3.5 millimeters of the technical program are suitable scope.
As preferably, described semiaxis is provided with knock hole with one end of external splines.Adopt the technical program, utilize ejector pin to fix half shaft end, ensure that the stability of semiaxis installation and positioning structure.
As preferably, the material of described semiaxis is 50CrVA.50CrVA has good mechanical property and technology capability, and hardening capacity is higher.
As preferably, described sun gear thickness is 60 millimeters.
As preferably, described half shaft length is 1115 millimeters.
Accompanying drawing explanation
Fig. 1 is the utility model plan view.
Fig. 2 is Fig. 1 left view.
In figure: 1, semiaxis, 2, sun gear, 3, spline, 4, knock hole, 5, quench-hardened case.
Embodiment
For the technical characterstic of this programme can be clearly demonstrated, with reference to the accompanying drawings the utility model embodiment is described further below.
As shown in Figure 1 and Figure 2, a kind of hardening type band sun gear semiaxis, comprise that length is the semiaxis 1 of 1115 millimeters, the thickness that is arranged at semiaxis one end is the sun gear 2 of 60 millimeters and be arranged at spline 3 and the knock hole 4 of the semiaxis the other end, described semiaxis 1 and sun gear 2 integrally formed, have quench-hardened case 5 at sun gear 2 gear surface, the thickness of described quench-hardened case 5 in tooth root portion is 3.1 ~ 3.5 millimeters.
By reference to the accompanying drawings embodiment of the present utility model is elaborated above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (6)
1. a hardening type band sun gear semiaxis, comprise semiaxis, be arranged at the sun gear of semiaxis one end and be arranged at the spline of the semiaxis the other end, described semiaxis and sun gear integrally formed, there is quench-hardened case at solar wheeling tooth wheel surface, it is characterized in that: described quench-hardened case is at least 1.5 millimeters at the thickness in tooth root portion.
2. hardening type band sun gear semiaxis according to claim 1, is characterized in that: the thickness of described quench-hardened case in tooth root portion is 3.1 ~ 3.5 millimeters.
3. hardening type band sun gear semiaxis according to claim 1, is characterized in that: described semiaxis is provided with knock hole with one end of external splines.
4., according to the arbitrary described hardening type band sun gear semiaxis of claim 1 ~ 3, it is characterized in that: the material of described semiaxis is 50CrVA.
5., according to the arbitrary described hardening type band sun gear semiaxis of claim 1 ~ 3, it is characterized in that: described sun gear thickness is 60 millimeters.
6. hardening type band sun gear semiaxis according to claim 5, is characterized in that: described half shaft length is 1115 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386092.7U CN204041918U (en) | 2014-07-14 | 2014-07-14 | A kind of hardening type band sun gear semiaxis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386092.7U CN204041918U (en) | 2014-07-14 | 2014-07-14 | A kind of hardening type band sun gear semiaxis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041918U true CN204041918U (en) | 2014-12-24 |
Family
ID=52242586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420386092.7U Expired - Fee Related CN204041918U (en) | 2014-07-14 | 2014-07-14 | A kind of hardening type band sun gear semiaxis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041918U (en) |
-
2014
- 2014-07-14 CN CN201420386092.7U patent/CN204041918U/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: 20141224 Termination date: 20170714 |