CN102072309A - Engine driven gear assembly with lubricating hole - Google Patents
Engine driven gear assembly with lubricating hole Download PDFInfo
- Publication number
- CN102072309A CN102072309A CN 201110031516 CN201110031516A CN102072309A CN 102072309 A CN102072309 A CN 102072309A CN 201110031516 CN201110031516 CN 201110031516 CN 201110031516 A CN201110031516 A CN 201110031516A CN 102072309 A CN102072309 A CN 102072309A
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- CN
- China
- Prior art keywords
- driven gear
- camshaft
- hole
- oilhole
- assembly
- 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.)
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Abstract
The invention provides an engine driven gear assembly with a lubricating hole. The engine driven gear assembly with the lubricating hole consists of a separation gear, a driven gear, a torsional spring and an elastic check ring for a shaft and is characterized in that: the lubricating hole is radially formed on a shaft neck of the driven gear; one end of the lubricating hole is as same as that of an oil conveying hole radially formed on a camshaft; and the other end of the lubricating hole leads to an assembling gap between the shaft neck of the driven gear and an inner hole of the separation gear. In the engine driven gear assembly with the lubricating hole, the lubricating hole is formed on the shaft neck of the driven gear, lubricating oil in the camshaft is introduced from the oil hole to the gap between the shaft neck of the driven gear and the inner hole of the separation gear, and an oil film is established, so that friction between friction pairs is reduced and the service life of the gear is prolonged.
Description
Technical field
The present invention relates to the lubrication technology of driven gear assembly inside.
Background technique
The timing gear that adopt in the motor are divided into driving gear and driven gear at present, are installed on the camshaft respectively.Wherein driven gear is designed to an assembly structure, form by disengage gears, driven gear and a torque spring, disengage gears is installed in forms driven gear assembly on the driven gear, be assembled on the camshaft more at last, disengage gears acts under torque spring power eliminates the gap, reaches the purpose of eliminating noise.
Eliminate in the gap under the spring force effect, disengage gears is done the to-and-fro motion of high frequency on driven gear.In the driven gear assembly of present various structures, all be not specifically designed to and introduce lubricant oil to the design between disengage gears and the driven gear.Therefore, the danger of heavy wear among a small circle very easily appears in the friction pair of disengage gears and driven gear in long-term using process.
Summary of the invention
The objective of the invention is to problem, a kind of motor driven gear assembly with oilhole is provided,, reduce wearing and tearing with lubricated driven gear and disengage gears friction pair at the prior art existence.
Technological scheme of the present invention is as follows:
A kind of motor driven gear assembly with oilhole, it is made up of disengage gears, driven gear, torque spring and circlip for shaft; Described disengage gears is installed on the axle journal of driven gear, block by first circlip for shaft exterior edge face, torque spring is installed between disengage gears and the driven gear, and be arranged in the end face groove of driven gear, described driven gear assembly is installed on the camshaft, the end face of axle journal one end of driven gear and the assembly bench terrace of camshaft offset, and the another side of driven gear is stuck on the camshaft by second circlip for shaft;
It is characterized in that: radially have oilhole on the axle journal of described driven gear, the oil transportation hole that radially is provided with on an end of described oilhole and the camshaft is identical, and the other end passes to the fit up gap between the endoporus of the axle journal of driven gear and disengage gears.
The technical solution adopted in the present invention is to increase oilhole on the axle journal of driven gear, be incorporated into the lubricant oil in the camshaft between the gap of driven gear axle journal and disengage gears endoporus by oilhole, set up oil film, the friction between the pair of reducing friction prolongs working life of gear.
Description of drawings
Fig. 1 adopts driven gear assembly of the present invention to be installed in structural representation on the camshaft;
Among the figure 1, the oil transportation hole, 2, disengage gears, 3, torque spring, 4, driven gear, 5, oilhole, 6, camshaft, 7, the camshaft main oil-hole, 8, first circlip for shaft (Type B-GB894.245), 9, second circlip for shaft (Type B-GB894.232), 10, the fit up gap.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, disengage gears 2 is installed on the driven gear 4 and by parts such as torque springs 3 and is combined into driven gear assembly, and driven gear assembly is installed in again on the camshaft 6.Concrete assembly relation is, disengage gears 2 is installed on the axle journal of driven gear 4, block by first circlip for shaft 8 exterior edge face, torque spring 3 is installed between disengage gears 2 and the driven gear 4, and be arranged in the end face groove of driven gear 4, driven gear assembly is installed on the camshaft 6, and the end face of axle journal one end of driven gear 4 and the assembly bench terrace of camshaft offset, and the another side of driven gear 4 is stuck on the camshaft 6 by second circlip for shaft 9.This driven gear assembly is done high-frequency among a small circle to-and-fro motion in disengage gears 2 under the effect of torque spring 3 on driven gear 4.The present invention radially has oilhole 5 on the axle journal of described driven gear 4, the oil transportation hole 1 that radially is provided with on an end of oilhole 5 and the camshaft 6 is identical, and the other end passes to the fit up gap 10 between the endoporus of the axle journal of driven gear 4 and disengage gears 2.Like this from the lubricant oil of camshaft main oil-hole 7, oil transportation hole 1 and the oilhole 5 on the driven gear by camshaft are incorporated into lubricant oil between the fit up gap 10 of driven gear axle journal and disengage gears endoporus, and it is lubricated.
Owing to oil transportation hole 1 more than can be set on the camshaft 6, diameter that therefore must each oilhole of control, it is excessive to avoid dredge oil amount occurring, causes in the camshaft oil pressure not set up.On the fitness for purpose camshaft diameter in oil transportation hole 1 at 2mm between the 2.5mm.Simultaneously, lubricant oil can be incorporated into driven gear assembly inside from camshaft in order to guarantee enough oil pressure, the oilhole 5 on the driven gear 4 is littler than camshaft lubrication oilhole 7.In addition, for fear of causing that crackle appears in the driven gear axle journal man-hour adding, diameter that also must the control oilhole.Comprehensive above factor, driven gear oilhole 5 diameters generally are not more than 1.5mm.In order between the friction pair of driven gear 4 and disengage gears 2, to set up oil film, need suitable fit up gap.According to calculating and actual effect, fit up gap 10 values between driven gear 4 axle journals and disengage gears 2 endoporus are 0.045mm～0.08mm.The oil transportation hole 1 of camshaft is (arbitrarily angled) in the radial direction of camshaft main oil-hole 7, and the oilhole 5 of driven gear and the axis in camshaft oil transportation hole 1 are on same direction.
Claims (3)
1. motor driven gear assembly with oilhole, it is made up of disengage gears (2), driven gear (4), torque spring (3) and circlip for shaft; Described disengage gears (2) is installed on the axle journal of driven gear (4), block by first circlip for shaft (8) exterior edge face, torque spring (3) is installed between disengage gears (2) and the driven gear (4), and be arranged in the end face groove of driven gear (4), described driven gear assembly is installed on the camshaft (6), the end face of axle journal one end of driven gear (4) and the assembly bench terrace of camshaft offset, and the another side of driven gear (4) is stuck on the camshaft by second circlip for shaft (9);
It is characterized in that: on the axle journal of described driven gear (4), radially have oilhole (5), the oil transportation hole (1) that radially is provided with on one end of described oilhole (5) and the camshaft (6) is identical, and the other end passes to the fit up gap between the endoporus of the axle journal of driven gear (4) and disengage gears (2).
2. the motor driven gear assembly of band oilhole according to claim 1 is characterized in that: oilhole (5) diameter of described driven gear (4) is smaller or equal to 1.5mm.
3. the motor driven gear assembly of band oilhole according to claim 1 and 2 is characterized in that: the gap (10) between the endoporus of the axle journal of described driven gear (4) and disengage gears (2) is 0.045mm～0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110031516 CN102072309A (en) | 2011-01-29 | 2011-01-29 | Engine driven gear assembly with lubricating hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110031516 CN102072309A (en) | 2011-01-29 | 2011-01-29 | Engine driven gear assembly with lubricating hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102072309A true CN102072309A (en) | 2011-05-25 |
Family
ID=44030980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110031516 Pending CN102072309A (en) | 2011-01-29 | 2011-01-29 | Engine driven gear assembly with lubricating hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102072309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9664251B2 (en) | 2015-01-09 | 2017-05-30 | Deere & Company | Coupler for translating rotational forces |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100064054A (en) * | 2008-12-04 | 2010-06-14 | 현대자동차주식회사 | Oil lubricating structure of scissors gear device |
-
2011
- 2011-01-29 CN CN 201110031516 patent/CN102072309A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100064054A (en) * | 2008-12-04 | 2010-06-14 | 현대자동차주식회사 | Oil lubricating structure of scissors gear device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9664251B2 (en) | 2015-01-09 | 2017-05-30 | Deere & Company | Coupler for translating rotational forces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |