CN201705894U - Driven gear assembly of automobile engine - Google Patents
Driven gear assembly of automobile engine Download PDFInfo
- Publication number
- CN201705894U CN201705894U CN2010202385190U CN201020238519U CN201705894U CN 201705894 U CN201705894 U CN 201705894U CN 2010202385190 U CN2010202385190 U CN 2010202385190U CN 201020238519 U CN201020238519 U CN 201020238519U CN 201705894 U CN201705894 U CN 201705894U
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- CN
- China
- Prior art keywords
- driven gear
- tension spring
- gear
- spring sheet
- disengage gears
- 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 relates to a driven gear assembly of an automobile engine. The driven gear assembly includes a driven gear, a separating gear and tension spring leaves; the driven gear is axially fixed with the separating gear via a block ring; the tension spring leaves are assembled between the driven gear and the separating gear; a locking screw is also arranged between the separating gear and the driven gear, the radial relative movement between the separating gear and the driven gear is controlled by the locking screw. The tension spring leaves have a semi-arc shape and the two leaves are symmetrical, one end of one of the tension spring leaves is fixed on the separating gear via a positioning pin, the other end is fixed on the driven gear via another positioning pin, the installation direction of the both ends of the other tension spring leaf is opposite to that of the previous tension spring leaf, the rotation moment of the tension spring leaves is opposite to the rotation direction of the driven gear. The driven gear assembly, which has simple and compact structure, can uniformly and effectively eliminate lateral clearance, thereby eliminating the engaging and impacting noise of gears.
Description
Technical field:
The utility model belongs to gear transmission technology, is specifically related to a kind of driving gear structure of motor car engine.
Background technique:
The crest places the cam axle construction of motor car engine is used increasingly extensive with advantages such as its more accurate control to valve, more compact structure.In this structure, the kind of drive between two camshafts generally has chain-driven, belt transmission and gear transmission.
Wherein, belt transmission structure is simple, cost is low, but reliability is relatively poor relatively.Chain-driven has gear transmission and bel-drivenn characteristics concurrently, but needs to increase tension device for abating the noise, complex structure, and cost is higher.And gear-driven efficiency height, velocity ratio accurately, compact structure, good reliability, but because machine adds precision, gear normally assembles, works, its flute profile cooperates and always has small sideshake, can produce the mesh impact noise.At present, in order to reduce the noise of gear, promptly to overcome the sideshake of their diameters, generally adopt disengage gears form on driven gear, promptly disengage gears combines by tensioning mechanism and driven gear, and disengage gears is under the elastic force effect, with driven gear certain angle that staggers, it is just combined with another flank of tooth of driving gear, effectively eliminate sideshake, thereby reduce the mesh impact noise.But the traditional disengage gears and the tensioning of driven gear are to realize by the tension force of a spring ring, exist tension force inhomogeneous, gear engagement face unbalance stress, and the problem that spring ring easily rocks still can not be eliminated noise fully.
Summary of the invention:
The purpose of this utility model is the problems referred to above of existing at existing motor driving gear, proposes a kind of simple in structurely, eliminates the driven gear assembly of the tangible motor car engine of noise.
The technical solution of the utility model is as follows:
A kind of driven gear assembly of motor car engine, it is made up of driven gear, disengage gears and tension spring sheet; Described driven gear and disengage gears are by carrying out the back-up ring axial restraint; Described tension spring sheet is assemblied between driven gear and the disengage gears, and lock screw also is installed between disengage gears and the driven gear, the radially relative movement of control disengage gears and driven gear.
Its improvement is to have designed two tension spring sheets, two symmetries, be half arc, wherein an end of a slice tension spring sheet is fixed on the disengage gears by locating stud, the other end is fixed on the driven gear by locating stud, the two ends of another sheet tension spring sheet then installation direction with preceding a slice tension spring sheet are opposite, and will make the running torque of tension spring sheet opposite with the sense of rotation of driven gear when mounted.
The utility model adopts the spring sheet of two symmetries to connect driven gear and disengage gears, before installation, two gears are fixed by stop screw, after installing driven gear assembly, take off stop screw, spring sheet elastic force drives disengage gears and rotates to an angle, because the running torque of spring sheet is opposite with the sense of rotation of driven gear, driving gear is subjected to the spring force of the reaction force of the driven gear disengage gears opposite with direction, otherwise driven gear assembly (driven gear and disengage gears) is subjected to the reaction force and the rightabout spring sheet reaction force of driving gear.The teeth groove two sides that is driving gear is subjected to two power effects: 1) active force; 2) acting force of the spring.That is to say that there are not the gap in driving gear and driven gear assembly between (containing driven gear and disengage gears), disengage gears has just played the effect of elimination gap.
Two symmetrical spring sheets that the utility model adopts are as tension structure, and are not only simple in structure, compact, and are easy to spatial arrangement.In addition, spring sheet technology is simple, reliability is high.Owing to adopt the symmetrical spring chip architecture, can eliminate sideshake equably, effectively, thereby eliminate the gear meshing impact noise, to satisfy the motor NVH requirement that improves day by day.
Description of drawings:
Fig. 1 is the part assembling schematic representation of driven gear assembly
Fig. 2 is the structural representation after driven gear assembly assembles;
Fig. 3 is the meshing relation schematic representation of driving gear and driven gear assembly.
1-lock screw 2-driven gear 3-tension spring sheet A, 6-tension spring sheet B 4-disengage gears 5-back-up ring 7-locating stud A, 8-locating stud A, 9 locating stud B, 10-locating stud B, the running torque direction that 11-driven gear assembly 12-driving gear assembly A-driven gear sense of rotation B-spring sheet produces
Embodiment:
Below, further specify structure of the present utility model in conjunction with the accompanying drawings:
Referring to Fig. 1 and Fig. 2, the driven gear assembly of motor is made up of driven gear 2, disengage gears 4, back-up ring 5 and tension spring sheet A 3 and tension spring sheet B6.Driven gear 2 is the identical helical gear of angle with disengage gears 4, and driven gear 2 and disengage gears 4 are axially fixed by back-up ring 5.Be equipped with tension spring sheet A3 and tension spring sheet B6 between driven gear 2 and the disengage gears 4.Tension spring sheet A 3 is half an identical arc of shape with tension spring sheet B6, and two symmetries.The end of tension spring sheet A3 is fixed on the disengage gears 4 by locating stud A7, and the other end is fixed on the driven gear 2 by locating stud A 8; And tension spring sheet B6 one end is fixed on the driven gear 2 by locating stud B9, and the other end then is fixed on the disengage gears 4 by locating stud B10.As shown in the figure, the installation direction at two tension spring sheet two ends is opposite, and will make the running torque of tension spring sheet opposite with the sense of rotation of driven gear when mounted.Arrow A is represented the driven gear assembly sense of rotation among the figure, and arrow B is represented the running torque direction of tension spring sheet.
When the assembling driven gear, need to control the radially relative movement of disengage gears 4 and driven gear 2 thus with lock screw 1 locking driven gear 2 and disengage gears 4.Referring to Fig. 3, after driven gear assembly 11 and driving gear 12 install, then can take off lock screw 1, this moment, two spring sheets produced the running torque of direction as shown because of self tension force, promote disengage gears 4 and driven gear 2 several angle that staggers, reach the purpose of eliminating sideshake.
Claims (1)
1. the driven gear assembly of a motor car engine, it is made up of driven gear, disengage gears and tension spring sheet; Described driven gear and disengage gears are carried out axial restraint by back-up ring; Described tension spring sheet is assemblied between driven gear and the disengage gears; Lock screw also is installed, the radially relative movement of control disengage gears and driven gear between described disengage gears and driven gear;
It is characterized in that: described tension spring sheet is half arc, have symmetrical two, wherein an end of a slice tension spring sheet is fixed on the disengage gears by locating stud, the other end is fixed on the driven gear by locating stud, the two ends of another sheet tension spring sheet then installation direction with preceding a slice tension spring sheet are opposite, and the running torque of described tension spring sheet is opposite with the sense of rotation of driven gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202385190U CN201705894U (en) | 2010-06-25 | 2010-06-25 | Driven gear assembly of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202385190U CN201705894U (en) | 2010-06-25 | 2010-06-25 | Driven gear assembly of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705894U true CN201705894U (en) | 2011-01-12 |
Family
ID=43443050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202385190U Expired - Fee Related CN201705894U (en) | 2010-06-25 | 2010-06-25 | Driven gear assembly of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705894U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915296A (en) * | 2010-06-25 | 2010-12-15 | 重庆长安汽车股份有限公司 | Driven gear assembly of engine |
| CN110886836A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Double-channel signal output's angle displacement sensor gear transmission structure |
-
2010
- 2010-06-25 CN CN2010202385190U patent/CN201705894U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915296A (en) * | 2010-06-25 | 2010-12-15 | 重庆长安汽车股份有限公司 | Driven gear assembly of engine |
| CN110886836A (en) * | 2019-11-28 | 2020-03-17 | 四川泛华航空仪表电器有限公司 | Double-channel signal output's angle displacement sensor gear transmission structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20130625 |