CN204061798U - The monolithic construction of trunnion shaft driving gear and timing drive sprocket - Google Patents
The monolithic construction of trunnion shaft driving gear and timing drive sprocket Download PDFInfo
- Publication number
- CN204061798U CN204061798U CN201420406154.6U CN201420406154U CN204061798U CN 204061798 U CN204061798 U CN 204061798U CN 201420406154 U CN201420406154 U CN 201420406154U CN 204061798 U CN204061798 U CN 204061798U
- Authority
- CN
- China
- Prior art keywords
- driving gear
- drive sprocket
- timing drive
- keyway
- monolithic construction
- 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
Links
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000005242 forging Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Gears, Cams (AREA)
Abstract
The utility model discloses the monolithic construction of a kind of trunnion shaft driving gear and timing drive sprocket, and be made up of driving gear and timing drive sprocket, wherein the periphery of driving gear is evenly equipped with profile of tooth; The shaft axis of timing drive sprocket and driving gear axle center line are on same straight line, the periphery of drive sprocket is evenly equipped with sprocket tooth form, driving gear and timing drive sprocket are monolithic construction, the hole wall of driving gear center hole has vertically a keyway, the bottom land of keyway does not exceed the junction plane of driving gear and timing drive sprocket.Because the utility model is monolithic construction, facilitate like this and the utility model is assemblied on bent axle, so just overcome original split-type structural and assemble troublesome defect, and the utility model is connected with bent axle by the key be contained in keyway, and the bottom land of keyway does not exceed the junction plane of driving gear and timing drive sprocket, so just can ensure the wall thickness of timing drive sprocket part, thus ensure working life.
Description
Technical field
The utility model belongs to balanced axle engine field, specifically, particularly relates to the monolithic construction of a kind of trunnion shaft driving gear and timing drive sprocket.
Background technique
As everyone knows, driving gear and timing drive sprocket are two vitals on bent axle, are split-type structural between them, these two parts generally by spline or key coaxial package on bent axle.
The defect of existing split-type structural is: because driving gear and timing drive sprocket are two independent parts, so in order to ensure the position relationship between them and between they and trunnion shaft, so will cause assembling difficulty, thus is unfavorable for producing.In addition, if these two parts adopt spline to coordinate with bent axle, so positioning precision is poor, and the noise of driving gear and timing drive sprocket is larger; If these two parts adopt the mode and bent axle interference fit that press-fit, so dismounting is just inconvenient, is so just unfavorable for maintenance; If when driving gear and timing drive sprocket adopt flat key to coordinate with bent axle, so the wall thickness of timing drive sprocket is just thinner, so not only easily produce thermal stress during heat treatment to concentrate, and it is concentrated also easily to produce stress during transferring power, thus shorten the working life of parts, damage parts even.
Model utility content
Technical problem to be solved in the utility model is the monolithic construction providing a kind of trunnion shaft driving gear and timing drive sprocket, for it being assemblied on bent axle easily, and ensures its working life.
The technical solution of the utility model is as follows: the monolithic construction of a kind of trunnion shaft driving gear and timing drive sprocket, be made up of driving gear (1) and timing drive sprocket (2), wherein the periphery of driving gear (1) is evenly equipped with profile of tooth (1a), the shaft axis of described timing drive sprocket (2) and driving gear (1) shaft axis are on same straight line, the center hole aperture of these two parts is equal, and the periphery of drive sprocket (2) is evenly equipped with sprocket tooth form (2a), it is characterized in that: described driving gear (1) and timing drive sprocket (2) are monolithic construction, the hole wall of driving gear (1) center hole has vertically a keyway (1b), the bottom land of this keyway does not exceed the junction plane of driving gear (1) and timing drive sprocket (2), and the center line of the shaft axis of keyway (1b) and described profile of tooth (1a) and sprocket tooth form (2a) tooth top is coplanar.
Adopt above structure, the utility model is on the basis of conventional construction, originally two split type parts are become present monolithic construction, and on the hole wall of driving gear (1) center hole, have a keyway (1b) vertically, the bottom land of this keyway does not exceed the junction plane of driving gear (1) and timing drive sprocket (2), and the center line of the shaft axis of keyway (1b) and described profile of tooth (1a) and sprocket tooth form (2a) tooth top is coplanar.
Adopt above technological scheme, because the utility model is monolithic construction, facilitate like this and the utility model is assemblied on trunnion shaft, so just overcome original split-type structural and assemble troublesome defect, and the utility model is connected with bent axle by the flat key be contained in keyway (1b), and the bottom land of keyway (1b) does not exceed the junction plane of driving gear (1) and timing drive sprocket (2), so just can ensure the wall thickness of timing drive sprocket (2) part, thus ensure working life, and the utility model just solves large problem by little change, there is good practicability, be suitable for extensively promoting the use.
In the present case, described driving gear (1) and timing drive sprocket (2) are one-body molded by forging.
Beneficial effect: because the utility model is monolithic construction, facilitate like this and the utility model is assemblied on bent axle, so just overcome original split-type structural and assemble troublesome defect, and the utility model is connected with trunnion shaft by the flat key be contained in keyway (1b), and the bottom land of keyway (1b) does not exceed the junction plane of driving gear (1) and timing drive sprocket (2), so just can ensure the wall thickness of timing drive sprocket (2) part, thus ensure working life, and the utility model just solves large problem by little change, there is good practicability, be suitable for extensively promoting the use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, 2, the monolithic construction of a kind of trunnion shaft driving gear and timing drive sprocket, be made up of driving gear 1 and timing drive sprocket 2, wherein the periphery of driving gear 1 is evenly equipped with profile of tooth 1a.The shaft axis of described timing drive sprocket 2 and driving gear 1 shaft axis are on same straight line, and the center hole aperture of these two parts is equal, and the periphery of drive sprocket 2 is evenly equipped with sprocket tooth form 2a.The above all adopts existing structure, and improvements of the present utility model are as described below.
Described driving gear 1 and timing drive sprocket 2 are monolithic construction, and driving gear 1 and timing drive sprocket 2 one-body molded by forging, then added by machine and obtain the utility model.Further, the hole wall of described driving gear 1 center hole has a keyway 1b vertically, the bottom land of this keyway 1b does not exceed driving gear 1 and the junction plane of timing drive sprocket 2, so just can ensure the wall thickness of timing drive sprocket 2 part.Meanwhile, the center line of the shaft axis of described keyway 1b and profile of tooth 1a and sprocket tooth form 2a tooth top, in same plane, so just can ensure that phase place coordinates and avoids distribution not timing and dynamic unbalance.
The foregoing is only preferred embodiment of the present utility model; it is not restriction with the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a monolithic construction for trunnion shaft driving gear and timing drive sprocket, be made up of driving gear (1) and timing drive sprocket (2), wherein the periphery of driving gear (1) is evenly equipped with profile of tooth (1a), the shaft axis of described timing drive sprocket (2) and driving gear (1) shaft axis are on same straight line, the center hole aperture of these two parts is equal, and the periphery of drive sprocket (2) is evenly equipped with sprocket tooth form (2a), it is characterized in that: described driving gear (1) and timing drive sprocket (2) are monolithic construction, the hole wall of driving gear (1) center hole has vertically a keyway (1b), the bottom land of this keyway does not exceed the junction plane of driving gear (1) and timing drive sprocket (2), and the center line of the shaft axis of keyway (1b) and described profile of tooth (1a) and sprocket tooth form (2a) tooth top is coplanar.
2. the monolithic construction of trunnion shaft driving gear and timing drive sprocket according to claim 1, is characterized in that: described driving gear (1) and timing drive sprocket (2) one-body molded by forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420406154.6U CN204061798U (en) | 2014-07-22 | 2014-07-22 | The monolithic construction of trunnion shaft driving gear and timing drive sprocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420406154.6U CN204061798U (en) | 2014-07-22 | 2014-07-22 | The monolithic construction of trunnion shaft driving gear and timing drive sprocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061798U true CN204061798U (en) | 2014-12-31 |
Family
ID=52203318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420406154.6U Expired - Fee Related CN204061798U (en) | 2014-07-22 | 2014-07-22 | The monolithic construction of trunnion shaft driving gear and timing drive sprocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864273A (en) * | 2016-05-31 | 2016-08-17 | 中国嘉陵工业股份有限公司（集团） | Crank of motorcycle engine with large discharge capacity and balance shaft |
-
2014
- 2014-07-22 CN CN201420406154.6U patent/CN204061798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864273A (en) * | 2016-05-31 | 2016-08-17 | 中国嘉陵工业股份有限公司（集团） | Crank of motorcycle engine with large discharge capacity and balance shaft |
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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 |
Effective date of registration: 20180928 Address after: 402760 111 Yongjia Avenue, Bi Quan street, Bishan District, Chongqing. Patentee after: Chongqing Jialing Industrial Co.,Ltd. Address before: No. 111 Yongjia Avenue, Bishan County, Chongqing City, Chongqing Patentee before: China Jialing Industry Co.,Ltd. (Group) |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |