CN206458520U - A kind of valve guide bushing - Google Patents
A kind of valve guide bushing Download PDFInfo
- Publication number
- CN206458520U CN206458520U CN201720029537.XU CN201720029537U CN206458520U CN 206458520 U CN206458520 U CN 206458520U CN 201720029537 U CN201720029537 U CN 201720029537U CN 206458520 U CN206458520 U CN 206458520U
- Authority
- CN
- China
- Prior art keywords
- guide bushing
- valve guide
- wedge
- bushing body
- grades
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of valve guide bushing, the upper surface of valve guide bushing body (2) is in by the centroclinal slope in outward flange, there is described ramped surfaces a plurality of center using described valve guide bushing body (2) to be that starting point is in array distribution and two grades of grooves (1) adjacent to each other radially outward, it is that starting point is in array structure radially outward towards Uniformly distributed to be distributed with second level groove (1) described in every using the center of described valve guide bushing body (2), multiple wedge-shaped blind holes of gradient stacked distribution formation wedged gap, the wedge-shaped edge (5) of each described wedge-shaped blind hole is domed, edge is sharp, its central interior along two grades of described grooves (1) towards described valve guide bushing body (2) that is open；The upper surface circumferential edge of described valve guide bushing body (2) is provided with arch boss (6).The utility model is a kind of can to realize that the continuous one direction of fluid sprawls carrying so as to improving the valve guide bushing of lubricant environment without external impetus.
Description
Technical field
The utility model is related to a kind of valve guide bushing.
Background technology
The function of valve guide bushing is the motion guide to valve, it is ensured that valve makees straight reciprocating motion, makes valve and valve
Seat or valve retainer can correctly fit.The operating temperature of valve guide bushing is higher, and lubricating condition is poor, is worked by valve actuating mechanism
When the machine oil got up that splashes lubricate valve stem and valve guide hole.The valve guide bushing technology of present situation, because valve is reciprocal in gas
Moved along a straight line in door conduit, it may appear that lubricating oil, which is reduced, causes the abrasion of valve and valve guide bushing to aggravate phenomenon, lubricating oil mistake
" burn oil " phenomenon occurs more, so that cause the dynamic property of internal combustion engine, economy, reliability to deteriorate, environmental pollution and phase
Close the lost of life of part.
For problem above, in order to rationally solve the carbon deposition phenomenon that " burn oil " and " oil leak " is caused in cylinder, this reality
Go out a kind of valve guide bushing device that carrying is sprawled without the i.e. achievable continuous one direction of fluid of external impetus with new design,
So as to prevent the generation of " burn oil " and " blast pipe lubricating oil leakage " failure.
Utility model content
Technical problem to be solved in the utility model is to provide one kind can realize that fluid connects without external impetus
Continuous one direction sprawls carrying to improve the valve guide bushing of lubricant environment.
In order to solve the above-mentioned technical problem, the valve guide bushing that the utility model is provided, including valve guide bushing body, it is described
The upper surface of valve guide bushing body is in that described ramped surfaces have a plurality of with described by the centroclinal slope in outward flange
The center of valve guide bushing body be starting point radially outward in array distribution and two grades of grooves adjacent to each other, in the described in every
It is that starting point is divided in array structure towards consistent radially outward to be distributed with two grades of grooves using the center of described valve guide bushing body
Multiple wedge-shaped blind holes of cloth, gradient stacked distribution formation wedged gap, the wedge-shaped edge of each described wedge-shaped blind hole is domed,
Edge is sharp, its central interior along two grades of described grooves 1 towards described valve guide bushing body that is open；Described valve
The upper surface circumferential edge of catheter body is provided with arch boss.
Further, described wedge-shaped blind hole is the wedge-shaped blind hole of duckbill.
Using the valve guide bushing of above-mentioned technical proposal, compared with prior art, its advantage is：The utility model need not
It is that the continuous one direction of fluid can be achieved to sprawl carrying by external impetus, is referred from the gradient key groove of the wedge-shaped blind hole of duckbill,
A kind of phenomenon for being similar to " gradient Taylor's capillary liter " is produced, angle inner edge continuous folk prescription of the lubricating fluid along wedge-shaped blind hole can be made
It to sprawling upwards, can prevent excessive lubricating fluid from flowing into valve clearance, the phenomenon such as " burn oil " or " oil leak " occur, while wedge
Shape blind hole can also store some lubricating fluids, can improve the lubricant environment between valve, improve the life-span of correlated parts, in addition,
The wedge-shaped blind hole structure of multistage of array-like is distributed centered on valve stem around valve guide bushing, makes to moisten between valve and valve guide bushing
It is sliding uniform, prevent and vibrated caused by abrasion inequality, the arch boss of valve guide bushing body periphery can prevent lubricating fluid
Excessively flow out, combustion chamber is entered by cylinder wall and valve conduit outer wall.
In summary, the utility model is a kind of can to realize that the continuous one direction of fluid is sprawled without external impetus and remove
Fortune is so as to improve the valve guide bushing of lubricant environment.
Brief description of the drawings
Fig. 1 is the structural representation after the utility model is installed with valve stem.
Fig. 2 is Fig. 1 partial enlarged drawing, shows two grades of valve guide bushing top groove tomograph.
Fig. 3 is the sectional view after the utility model is installed with valve stem.
Fig. 4 is Fig. 3 partial enlarged drawing, shows the gradient and two grades of groove structure figures on valve guide bushing top.
Fig. 5 is top view of the present utility model.
Description of reference numerals：Bis- grades of grooves of 1-；2- valve guide bushing bodies；3- valve stems；4- duckbills wedge shape blind hole；5- wedges
Shape edge；6- arch boss.
Embodiment
The utility model is described further with reference to the accompanying drawings and examples.
The operating temperature of valve guide bushing is higher, and lubricating condition is poor, and splash the machine of getting up when being worked by valve actuating mechanism
Oil lubricates valve stem and valve guide hole, the utility model can solve due to lubricating fluid it is too little or too much caused by lubrication not
Good phenomenon, as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the utility model includes valve guide bushing body 2 and valve stem 3, valve
Bar 3 is arranged on the inside of valve guide bushing body 2, the upper surface of valve guide bushing body 2 be in by the centroclinal slope in outward flange,
There is ramped surfaces a plurality of center using valve guide bushing body 2 to be that starting point is in array distribution and adjacent to each other two grades radially outward
Groove 1, it is in array structure radially outward to be distributed with every second level groove 1 using the center of valve guide bushing body 2 as starting point
Towards multiple wedge-shaped blind holes of Uniformly distributed, gradient stacked distribution formation wedged gap, the wedge-shaped edge 5 of each wedge shape blind hole is in
Arch, edge is sharp, its central interior along two grades of grooves 1 towards valve guide bushing body 2 that is open；Valve guide bushing body 2
Upper surface circumferential edge is provided with arch boss 6.
Further, wedge-shaped blind hole is the wedge-shaped blind hole 4 of duckbill.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the upper end of valve guide bushing body 2 has certain gradient, two grades of grooves 1
In the gradient for being distributed in the upper surface of valve guide bushing body 2, two grades of grooves 1 centered on valve stem 3 be in array distribution, for by with
The lubricating fluid that the splashing of mechanism of qi structure comes, the structure of two grades of grooves 1 of array distribution can increase lubrication area, and lubricating uniform journey
Degree, duckbill wedge shape blind hole 4 and the structure distribution of wedge-shaped edge 5 are in array distribution with two grades of grooves 1 in two grades of grooves 1,
The wedge-shaped edge 5 of duckbill wedge shape blind hole 4 is domed, there is wedged gap, and gradient distribution, the structure of wedge-shaped edge 5 is sharp, opening
Along two grades of grooves 1 towards the center of valve guide bushing body 2, arch boss 6 is located at the upper end outer rim of valve guide bushing body 2, can prevented
Only because two grades of groove structures realize that the continuous one direction of lubricating fluid spreads out carrying, finally by cylinder wall and valve guide bushing outside
Wall enters combustion chamber, and the wedge-shaped storing excess lubricating fluid of blind hole 4 of duckbill can be prevented in addition and is flowed out.
In embodiment, as shown in Fig. 2 lubricating fluid one direction continuous transport is blind by continuously filling single duckbill wedge shape
Hole 4 is come what is realized, and liquid fills the wedge-shaped blind hole 4 of single duckbill generally first along the wedge-shaped interior angle of blind hole 4 of duckbill, wedge-shaped edge
5 sprawl, and gradually extrude bubble in the wedge-shaped blind hole 4 of duckbill, have finally been converged before the wedge-shaped edge 5 of the wedge-shaped blind hole 4 of duckbill
Into filling.
In embodiment, as shown in figure 4, lubricating fluid is splashed on valve guide bushing body 2, the ladder of duckbill wedge shape blind hole 4
Key groove is spent, a kind of phenomenon for being similar to " gradient Taylor's capillary liter " is produced, lubricating fluid can be made continuous along blind hole angle inner edge
One direction is sprawled upwards, can prevent excessive lubricating fluid from flowing into valve clearance, the phenomenon such as " burn oil " or " oil leak " occurs, together
When the wedge-shaped blind hole 4 of duckbill can also store some lubricating fluids, the lubricant environment between valve can be improved, correlated parts are improved
Life-span.
In embodiment, as shown in figure 4, lubricating fluid one direction sprawls process is：Liquid one direction, which is carried, can regard stacking as
The continuity filling of wedge-shaped blind hole, exemplified by filling adjacent three blind holes, the wedge-shaped blind hole 41 of the first duckbill as shown in Figure 4,
Second duckbill wedge shape blind hole 42, the wedge-shaped blind hole 43 of the 3rd duckbill, the lubricating fluid splashed are first filled with corresponding first
Duckbill wedge shape blind hole 41, before not being filled up completely with, if the liquid level thickness of lubricating fluid is more than the wedge-shaped blind hole 41 of the first duckbill
Outer rim, liquid can fill the second duckbill wedge shape along the wedge-shaped edge 5 of the wedge-shaped interior angle of the wedge-shaped blind hole 42 of the second duckbill
Blind hole 42, is not filled up completely with equally before the wedge-shaped blind hole 42 of full second duckbill, it is blind that lubricating fluid can cross the second duckbill wedge shape
The outer rim of hole 42 is sprawled along the wedge-shaped inside corner edge of the wedge-shaped blind hole 43 of the 3rd duckbill again.Continuous the following of duckbill wedge shape blind hole 4
Ring filling realizes liquid continuous transport.At the same time, the wedge-shaped edge 5 of the arch of the wedge-shaped blind hole 4 of duckbill and its sharp outer
Edge is easily met that gibbs is non-equilibrium when liquid sprawls infiltration, forms the retarding effect of liquid opposite direction flowing.
Claims (1)
1. a kind of valve guide bushing, including valve guide bushing body (2), it is characterized in that：The upper surface of described valve guide bushing body (2)
In by the centroclinal slope in outward flange, described ramped surfaces have a plurality of with described valve guide bushing body (2)
The heart is that starting point is in array distribution and two grades of grooves (1) adjacent to each other radially outward, is divided in two grades of grooves (1) described in every
It is starting point radially outward in array structure towards Uniformly distributed, gradient layer to be furnished with using the center of described valve guide bushing body (2)
Folded to be distributed the multiple wedge-shaped blind holes for forming wedged gap, the wedge-shaped edge (5) of each described wedge-shaped blind hole is domed, edge point
It is sharp, its central interior along two grades of described grooves (1) towards described valve guide bushing body (2) that is open；Described valve
The upper surface circumferential edge of catheter body (2) is provided with arch boss (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720029537.XU CN206458520U (en) | 2017-01-11 | 2017-01-11 | A kind of valve guide bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720029537.XU CN206458520U (en) | 2017-01-11 | 2017-01-11 | A kind of valve guide bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458520U true CN206458520U (en) | 2017-09-01 |
Family
ID=59698727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720029537.XU Withdrawn - After Issue CN206458520U (en) | 2017-01-11 | 2017-01-11 | A kind of valve guide bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703926A (en) * | 2017-01-11 | 2017-05-24 | 长沙理工大学 | Valve guide pipe |
-
2017
- 2017-01-11 CN CN201720029537.XU patent/CN206458520U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703926A (en) * | 2017-01-11 | 2017-05-24 | 长沙理工大学 | Valve guide pipe |
| CN106703926B (en) * | 2017-01-11 | 2022-08-05 | 长沙理工大学 | Valve guide pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20220805 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20220805 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |