CN202493306U - Elastic buffer type regulating bolt for rocker arm on internal-combustion engine - Google Patents
Elastic buffer type regulating bolt for rocker arm on internal-combustion engine Download PDFInfo
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- CN202493306U CN202493306U CN2012201108344U CN201220110834U CN202493306U CN 202493306 U CN202493306 U CN 202493306U CN 2012201108344 U CN2012201108344 U CN 2012201108344U CN 201220110834 U CN201220110834 U CN 201220110834U CN 202493306 U CN202493306 U CN 202493306U
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- combustion engine
- plug
- rocker arm
- hole
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Abstract
The utility model discloses an elastic buffer type regulating bolt for a rocker arm on an internal-combustion engine. The elastic buffer type regulating bolt comprises a screw, wherein the screw is provided with a through hole penetrating through two ends of the screw, one end of the through hole is provided with a plug, a sliding rod is arranged in the through hole, one end of the sliding rod extends out of one end of the through hole, which is far away from the plug, and a spring is arranged between the other end of the sliding rod and the plug, and is compressed through pressing the sliding rod or screwing the plug. The elastic buffer type regulating bolt has a simple structure, is convenient for processing and low in cost, can fundamentally solve the problem of noise increase caused by thermally-deformed clearance change and valve clearance of the internal-combustion engine in an operation process, and is effectively reduced in noise, thereby prolonging the service life of the internal-combustion engine and improving quality of the internal-combustion engine. The elastic buffer type regulating bolt is especially suitable for the field of internal-combustion engines of a motorcycle and an automobile.
Description
Technical field
The utility model relates to a kind of cylinder head of internal combustion engine (cylinder head) accessory, and the upper rocker arm that relates in particular to a kind of cylinder head of internal combustion engine (cylinder head) is regulated bolt with the elastic buffer formula.
Background technique
As everyone knows, internal-combustion engine is the core part part of dynamic power machine, and the quality of its performance is concerning the quality of dynamic power machine complete machine, and the noise of internal-combustion engine is one of important indicator of weighing engine performance.Discover that the noise that produces during internal combustion engine operation is mainly derived from cylinder head (cylinder head) part, especially cylinder head (cylinder head) rocking arm when work, rocking arm and push rod and certain clearance is arranged with the valve stem termination collide it each other and produce noise.
Cylinder head of internal combustion engine (cylinder head) is mainly by the upper rocker arm on cylinder head (cylinder head) matrix, the matrix and push rod between lower shake-changing arm, upper rocker arm and the lower shake-changing arm and valve stem formation.The valve clearance is installed in the termination of upper rocker arm regulates bolt, this adjusting bolt is fixed through screw thread and upper rocker arm.The two ends of push rod have with upper rocker arm and lower shake-changing arm on the bulb that is complementary of ball recess; The upper end of said push rod contacts with upper rocker arm, and the lower end contacts with lower shake-changing arm, and lower shake-changing arm contacts with cam; Behind engine starting, cam rotation drives the motion of lower shake-changing arm, push rod, upper rocker arm etc.Have gas-entered passageway and exhaust passage on the said matrix, gas-entered passageway and bottom, exhaust passage have valve seat, and said valve stem passes valve seat and gas-entered passageway and exhaust passage from the bottom up; Its upper end contacts with regulating bolt, and adjusting bolt and valve stem are stressed on same axis, like this; Regulate bolt through the motion drive of upper rocker arm and press down valve stem; Valve stem is moved up and down, thereby make the inlet and outlet door of internal-combustion engine replace opening and closing, guarantee the proper functioning of internal-combustion engine.
Existing adjusting bolt mainly is made up of nut and screw rod; On upper rocker arm, be provided with the adjusting bolt mounting holes; In this mounting hole, be provided with internal thread, during installation, the screw rod of regulating bolt cooperates through screw thread and adjusting bolt mounting holes on the upper rocker arm and links to each other; Like this through the rotation adjusting bolt, contact on upper rocker arm and push rod and adjusting bolt and the valve stem in the time of just can being implemented in cold machine.
But on the motorcycle IC engine that assembles, can there be the gap about 0.03-0.05mm all the time between adjusting bolt and the valve stem upper end; And during internal combustion engine operation, along with the lengthening of internal-combustion engine run duration, the temperature of each component raises gradually in the internal-combustion engine.Because the material aluminum alloy of cylinder head (cylinder head) matrix that generally uses, the material of upper rocker arm are aluminum alloy or steel part as the material of steel part, push rod; Be in operation; Different expansion coefficient occurs owing to material is different, the physical property of material differs greatly, cause upper rocker arm and push rod and and upper rocker arm adjusting bolt and the gap between the valve stem fixed increasing; Thereby when internal combustion engine operation, produce strong Strike note; This not only makes noise parameter exceed standard easily, more can make this position wearing and tearing aggravation, shortens internal-combustion engine life-span.
Although people have adopted a lot of methods to reduce generation of noise; But in the existing technology; What effect was best is exactly the material that changes cylinder head (cylinder head) matrix, upper rocker arm and push rod etc.; Make its expansion coefficient approaching, but so not only make cost of production improve (need research and development and make new manufactured materials), and can not address this problem well.
The model utility content
Above-mentioned deficiency to the existing technology existence; The purpose of the utility model just is to provide a kind of internal-combustion engine upper rocker arm to regulate bolt with the elastic buffer formula; Can reduce internal-combustion engine produces noise in running problem effectively, thereby prolong service life of engine, improve the quality of complete machine.
To achieve these goals; The technological scheme that the utility model adopts is such: a kind of internal-combustion engine upper rocker arm is regulated bolt with the elastic buffer formula; Comprise screw rod, it is characterized in that: said screw rod have one run through its two ends through hole, an end of this through hole is provided with a plug; In through hole, also be provided with a sliding bar, an end of said sliding bar stretches out from the end of through hole away from plug, between the other end of sliding bar and plug, also is provided with a spring, can make length of spring compressed through pushing sliding bar.
When mounted, will regulate the adjusting bolt mounting holes place that bolt is installed to upper rocker arm one end, and make sliding bar stretch out an end of screw rod and the end of valve stem pushes against, and spring was in compressive state this moment through screw rod.After internal-combustion engine was started working, temperature raise, and deformation takes place cylinder head of internal combustion engine (cylinder head); The gap of upper rocker arm and push rod and adjusting screw and valve end is increased, but since during cold machine spring be in compressive state, at this moment; Spring can reset with the increase in gap, thus with sliding bar to extrapolation, sliding bar is pushed against with valve end all the time; Simultaneously, force the other end of upper rocker arm and push rod to push against.Like this, in the working procedure of internal-combustion engine, regulate between bolt and valve end and upper rocker arm and the push rod and the gap can not occur, thereby avoided producing noise because of upper rocker arm and push rod and adjusting bolt and valve end collide.
Further, an end that is positioned at through hole at sliding bar is provided with the spring positioning shaft, and an end of said spring is sheathed and be fixed on this spring positioning shaft.Spring is fixed, thereby guaranteed the stressed of sliding bar all the time in same direction.
Further, said through hole becomes step-like, its away from the aperture of plug one end less than aperture near plug one end; Said sliding bar cooperates with the intersegmental crack of the path of through hole; Said sliding bar middle part is provided with a step, and this step is positioned at the big footpath section of through hole.Guaranteed sliding bar all the time along the axial motion of screw rod, made each constituent element of adjusting bolt not easily separated simultaneously, come off.
Further, said screw rod outer wall is provided with the convex edge near an end of plug; Be convenient to more install.
Further, has at least one exhaust port on the said screw rod.Discharge the inner air of screw rod when being convenient to assemble, make easier for installation.
Further, said plug and screw rod are through being threaded; On the end face of plug, also be provided with " one " font or " ten " font edge of a knife.Simple in structure, easy for installation.
Compared with prior art; The advantage of the utility model is: simple in structure, easy to process, with low cost; Can fundamentally reduce internal-combustion engine in running because valve clearance and thermal distortion post gap change the problem that makes the noise increase; Effectively reduce noise, thereby prolong internal-combustion engine life-span, improve the internal-combustion engine quality.This technology is specially adapted to motorcycle, car combustion engine field.
Description of drawings
Fig. 1 is the utility model embodiment 1 a decomposition texture schematic representation;
Assembly structure figure when Fig. 2 is the utility model embodiment 1 use;
Fig. 3 is the utility model embodiment 2 a decomposition texture schematic representation.
Embodiment
To combine accompanying drawing and embodiment that the utility model is described further below.
Embodiment 1: referring to Fig. 1, Fig. 2, a kind of internal-combustion engine upper rocker arm is regulated bolt with the elastic buffer formula, comprises screw rod 1, said screw rod 1 have one run through its two ends through hole 2, the axis of said through hole and the dead in line of screw rod, an end of this through hole 2 is provided with a plug 3; As a kind of mode, said plug 2 and screw rod 1 are through being threaded; Said plug is column, and its outer wall has outside thread, and an end of the through hole of said screw rod has the internal thread that cooperates with the plug outside thread; On the end face of plug, also be provided with " one " font or " ten " font edge of a knife 10, during assembling, the end face that has the edge of a knife 10 is positioned at outside the through hole, just can plug and screw rod be fixed through screw-driver like this, and is not only simple in structure, stable, and easy for installation.Plug and screw rod also can adopt mode such as clamping to fix, make install more convenient.
In through hole 2, also be provided with a sliding bar 5, an end of said sliding bar 5 stretches out from the end of through hole away from plug, between the other end of sliding bar 5 and plug 3, also is provided with a spring 6; With plug and screw rod fixing after, can make length of spring compressed through pushing sliding bar; Equally, after sliding bar and valve end pushed against, the plug of screwing also can make length of spring compressed.An end that is positioned at through hole at sliding bar 5 is provided with spring positioning shaft 8, and an end of said spring 6 is sheathed and be fixed on this spring positioning shaft 8; Spring is fixed, thereby guaranteed the stressed of sliding bar all the time in same direction.Has at least one exhaust port 9 on the said screw rod 1; Discharge the inner air of screw rod when being convenient to assemble, make easier for installation.
Said screw rod 1 outer wall is provided with convex edge 4 near an end of plug 3, and this convex edge 4 can be the hexagonal shaped shape outward, and the more convenient like this instruments such as spanner that utilize are installed.In order to make screw rod 1 more stable with the adjusting bolt mounting holes on the upper rocker arm 11, can and regulate between the bolt mounting holes in convex edge 4 fastening nut 12 is set, screw rod is more difficult like this comes off.
During practical implementation, 2 one-tenth of said through holes are step-like, its away from the aperture of plug one end less than aperture near plug one end; Said sliding bar 5 cooperates with the intersegmental crack of the path of through hole; Said sliding bar 5 middle parts are provided with a step 71, and this step 71 is positioned at the big footpath section of through hole; So just guaranteed sliding bar all the time along the axial motion of screw rod, made each constituent element of adjusting bolt not easily separated simultaneously, come off.
When mounted, will regulate the adjusting bolt mounting holes place that bolt is installed to upper rocker arm one end, and make sliding bar stretch out an end of screw rod and the end of valve stem pushes against, and spring was in compressive state this moment through screw rod.After internal-combustion engine was started working, temperature raise, and deformation takes place cylinder head of internal combustion engine (cylinder head); The gap of upper rocker arm and push rod and adjusting screw and valve end is increased, but since during cold machine spring be in compressive state, at this moment; Spring can reset with the increase in gap, thus with sliding bar to extrapolation, sliding bar is pushed against with valve end all the time; Simultaneously, force the other end of upper rocker arm and push rod to push against.Like this, in the working procedure of internal-combustion engine, regulate between bolt and valve end and upper rocker arm and the push rod and the gap can not occur, thereby avoided producing noise because of upper rocker arm and push rod and adjusting bolt and valve end collide.
Embodiment 2: referring to Fig. 3, different with embodiment 1 is, 2 one-tenth of said through holes are step-like, its away from the aperture of plug one end less than aperture near plug one end; Said sliding bar cooperates with the intersegmental crack of the path of through hole; An end that is positioned at through hole at sliding bar 5 is provided with a baffle plate 72, and this baffle plate 72 is positioned at the big footpath section of through hole; Thereby guaranteed sliding bar all the time along the axial motion of screw rod, made each constituent element of adjusting bolt not easily separated simultaneously, come off.One side of said baffle plate 72 links to each other with sliding bar 5, and opposite side and spring positioning shaft 8 is fixing, and an end of said spring 6 is sheathed and be fixed on this spring positioning shaft; Spring is fixed, thereby guaranteed the stressed of sliding bar all the time in same direction.Said sliding bar 5, baffle plate 72 and spring positioning shaft 8 can be weldingly fixed on together, also can pass through the mould once-through, process convenient like this.
Need to prove at last; Above embodiment is only in order to technological scheme but not the restriction technologies scheme of explanation the utility model; Although the claimant specifies the utility model with reference to preferred embodiment, those of ordinary skill in the art should be appreciated that those technological schemes to the utility model make amendment or be equal to replacement; And do not break away from the aim and the scope of present technique scheme, all should be encompassed in the middle of the claim scope of the utility model.
Claims (8)
1. an internal-combustion engine upper rocker arm is regulated bolt with the elastic buffer formula, comprises screw rod, it is characterized in that: said screw rod have one run through its two ends through hole, an end of this through hole is provided with a plug; In through hole, also be provided with a sliding bar, an end of said sliding bar stretches out from the end of through hole away from plug, between the other end of sliding bar and plug, also is provided with a spring, can make length of spring compressed through pushing sliding bar.
2. internal-combustion engine upper rocker arm according to claim 1 is regulated bolt with the elastic buffer formula, and it is characterized in that: an end that is positioned at through hole at sliding bar is provided with the spring positioning shaft, and an end of said spring is sheathed and be fixed on this spring positioning shaft.
3. internal-combustion engine upper rocker arm according to claim 1 and 2 is regulated bolt with the elastic buffer formula, and it is characterized in that: said through hole becomes step-like, its away from the aperture of plug one end less than aperture near plug one end; Said sliding bar cooperates with the intersegmental crack of the path of through hole.
4. internal-combustion engine upper rocker arm according to claim 3 is regulated bolt with the elastic buffer formula, it is characterized in that: said sliding bar middle part is provided with a step, and this step is positioned at the big footpath section of through hole.
5. internal-combustion engine upper rocker arm according to claim 1 is regulated bolt with the elastic buffer formula, and it is characterized in that: said screw rod outer wall is provided with the convex edge near an end of plug.
6. internal-combustion engine upper rocker arm according to claim 1 is regulated bolt with the elastic buffer formula, it is characterized in that: have at least one exhaust port on the said screw rod.
7. internal-combustion engine upper rocker arm according to claim 1 is regulated bolt with the elastic buffer formula, it is characterized in that: said plug and screw rod are through being threaded.
8. internal-combustion engine upper rocker arm according to claim 7 is regulated bolt with the elastic buffer formula, it is characterized in that: on the end face of plug, also be provided with " one " font or " ten " font edge of a knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201108344U CN202493306U (en) | 2012-03-22 | 2012-03-22 | Elastic buffer type regulating bolt for rocker arm on internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201108344U CN202493306U (en) | 2012-03-22 | 2012-03-22 | Elastic buffer type regulating bolt for rocker arm on internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493306U true CN202493306U (en) | 2012-10-17 |
Family
ID=46999540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201108344U Expired - Fee Related CN202493306U (en) | 2012-03-22 | 2012-03-22 | Elastic buffer type regulating bolt for rocker arm on internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493306U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110285A (en) * | 2014-03-14 | 2014-10-22 | 重庆建设摩托车股份有限公司 | Motorcycle engine valve clearance eliminating device |
| CN110878682A (en) * | 2018-09-05 | 2020-03-13 | 中国石油天然气股份有限公司 | Plug device |
-
2012
- 2012-03-22 CN CN2012201108344U patent/CN202493306U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110285A (en) * | 2014-03-14 | 2014-10-22 | 重庆建设摩托车股份有限公司 | Motorcycle engine valve clearance eliminating device |
| CN110878682A (en) * | 2018-09-05 | 2020-03-13 | 中国石油天然气股份有限公司 | Plug device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20180322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |