CN202690969U - Improved transmission shell structure - Google Patents
Improved transmission shell structure Download PDFInfo
- Publication number
- CN202690969U CN202690969U CN 201220308822 CN201220308822U CN202690969U CN 202690969 U CN202690969 U CN 202690969U CN 201220308822 CN201220308822 CN 201220308822 CN 201220308822 U CN201220308822 U CN 201220308822U CN 202690969 U CN202690969 U CN 202690969U
- Authority
- CN
- China
- Prior art keywords
- transmission
- speed changer
- transmission shell
- gearbox case
- shell structure
- 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 - Lifetime
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Abstract
The utility model discloses an improved transmission shell structure. The improved transmission shell structure comprises a transmission shell; mounting holes and locating pin holes which are used for mounting a central brake are arranged outside a transmission; the mounting holes are distributed on the periphery of an axle hole of the transmission shell. According to the improved transmission shell structure, a brake mode of a vehicle can be changed by adding the central brake due to a fact that the mounting holes and the locating pin holes which are used for mounting the central brake are arranged on the transmission shell, strength of a transmission rear shell is ensured by optimizing and improving the structure, so that wearing of the transmission is reduced and service life of the transmission is prolonged.
Description
Technical field
The utility model relates to a kind of shell mechanism of improved speed changer, belongs to the automotive transmission technical field.
Background technique
Automotive transmission is as the crucial assembly of transmission system, and its structure has direct impact to the stationarity of the reliability of the power character of automobile, Economy, manipulation and portability, transmission and efficient etc.; Speed changer only has enough integral rigidity guarantee gear correct engagement, thereby guarantees its stable working, noise is low, the life-span is long.Centre brake is installed in the middle of the forward and backward transmission shaft, major function is parking braking, and the working principle of centre brake is by brake and transmission shaft, keeps vehicle stationary state during Parking, the blocking-up transmission of power mainly is applicable on the light truck and passenger vehicle of rear-driving type during emergency braking.Former transmission assembly is to be assemblied on the speed changer of commercial vehicle, it does not have centre brake, the form that the parking braking that former commercial vehicle uses is not braked for the wheel limit, centre brake is installed to satisfy the demand of parking braking and emergency braking at original speed changer back cover, centre brake will produce huge moment of torsion under the limited conditions, very easily cause the damage of speed changer back cover, therefore will be optimized design to the speed changer back cover structure.
The model utility content
Technical problem to be solved in the utility model is, overcome the shortcoming of prior art, propose a kind of shell mechanism of improved speed changer, centre brake is installed to satisfy the demand of parking braking and emergency braking at original speed changer back cover, guarantee that transmission system is in the safe Environmental Conditions.
In order to solve above technical problem, the utility model provides a kind of shell mechanism of improved speed changer, comprise gearbox case, the described speed changer outside is provided with to install mounting hole and the positioning pin hole of centre brake, and described mounting hole is distributed in around the described gearbox case axis hole.
The utility model further limits technological scheme: the shell mechanism of aforesaid improved speed changer is provided with altogether four mounting holes, and is symmetrical arranged, stablizing during with the work of assurance centre brake equipment on the described gearbox case.
Further, the shell mechanism of aforesaid improved speed changer is provided with stiffening rib between described mounting hole, positioning pin hole and the described gearbox case convex platform, in order to increasing the intensity of housing, and can increase the effect that surface area plays heat radiation; In addition, remove several the original stiffening ribs that intersect with newly-increased stiffening rib, simplified the structure to a certain extent, reduced processing difficulties.
The beneficial effects of the utility model are: the utility model is in said structure, owing to being provided with mounting hole and the positioning pin hole of installing for centre brake on the gearbox case housing, can change by installing centre brake additional the mode of braking of vehicle, and by structural optimization is improved, guaranteed the intensity of speed changer back cover, reduce the wearing and tearing of speed changer, the working life of having improved speed changer.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment 1
The shell mechanism of a kind of improved speed changer that the present embodiment provides, structure as shown in Figure 1, comprise gearbox case 1, the speed changer outside is provided with to install mounting hole 2 and the positioning pin hole 3 of centre brake, mounting hole is provided with four, and be symmetrical arranged stablizing during with the work of assurance centre brake equipment.Mounting hole is distributed in around the gearbox case axis hole, is provided with stiffening rib 4 between mounting hole, positioning pin hole and gearbox case convex platform, in order to increasing the intensity of housing, and can increase the effect that surface area plays heat radiation; In addition, remove several the original stiffening ribs that intersect with newly-increased stiffening rib, simplified the structure to a certain extent, reduced processing difficulties.
In the present embodiment according to interpretation of result, the average safety factor of case material is about 3, maximum stress in the housing is 64MPa, only has 45% of yield strength (minimum value) σ 0.2=140MPa, and former similar products damaged positioning pin hole place stress easily to occur very little, only have 49MPa.Therefore this housing can satisfy requirement of strength under normal the use, thereby, can satisfy usage requirement what light truck use 2830.5 transmission assemblies installed centre brake additional.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. the shell mechanism of an improved speed changer comprises gearbox case, it is characterized in that: the described speed changer outside is provided with to install mounting hole and the positioning pin hole of centre brake, and described mounting hole is distributed in around the described gearbox case axis hole.
2. the shell mechanism of improved speed changer according to claim 1 is characterized in that: be provided with altogether four mounting holes on the described gearbox case.
3. the shell mechanism of improved speed changer according to claim 1 is characterized in that: be provided with stiffening rib between described mounting hole, positioning pin hole and the described gearbox case convex platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308822 CN202690969U (en) | 2012-06-28 | 2012-06-28 | Improved transmission shell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308822 CN202690969U (en) | 2012-06-28 | 2012-06-28 | Improved transmission shell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690969U true CN202690969U (en) | 2013-01-23 |
Family
ID=47546594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308822 Expired - Lifetime CN202690969U (en) | 2012-06-28 | 2012-06-28 | Improved transmission shell structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690969U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295714A (en) * | 2014-10-21 | 2015-01-21 | 重庆市霞艺汽车配件制造有限公司 | Right box of bi-gear gearbox assembly of electric vehicle |
| CN104791472A (en) * | 2015-04-02 | 2015-07-22 | 重庆钟华机械有限责任公司 | Shell of differential speed variator for automobile |
| CN105864402A (en) * | 2016-06-21 | 2016-08-17 | 肇庆高新区凯盈顺汽车设计有限公司 | Transmission housing |
-
2012
- 2012-06-28 CN CN 201220308822 patent/CN202690969U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295714A (en) * | 2014-10-21 | 2015-01-21 | 重庆市霞艺汽车配件制造有限公司 | Right box of bi-gear gearbox assembly of electric vehicle |
| CN104295714B (en) * | 2014-10-21 | 2016-08-24 | 重庆市霞艺汽车配件制造有限公司 | A kind of right case of two grades of electric vehicle transmission assemblies |
| CN104791472A (en) * | 2015-04-02 | 2015-07-22 | 重庆钟华机械有限责任公司 | Shell of differential speed variator for automobile |
| CN105864402A (en) * | 2016-06-21 | 2016-08-17 | 肇庆高新区凯盈顺汽车设计有限公司 | Transmission housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180727 Address after: No. 2500, Yangpu District military road, Shanghai, Shanghai Patentee after: SAIC MAXUS AUTOMOBILE Co.,Ltd. Address before: No. 100, black ink camp, Nanjing, Jiangsu, Jiangsu Patentee before: NANJING IVECO AUTOMOBILE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |