CN202970836U - Belleville spring provided with centering ring groove - Google Patents
Belleville spring provided with centering ring groove Download PDFInfo
- Publication number
- CN202970836U CN202970836U CN 201220433592 CN201220433592U CN202970836U CN 202970836 U CN202970836 U CN 202970836U CN 201220433592 CN201220433592 CN 201220433592 CN 201220433592 U CN201220433592 U CN 201220433592U CN 202970836 U CN202970836 U CN 202970836U
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- CN
- China
- Prior art keywords
- belleville spring
- valve
- centering ring
- rotating mechanism
- engine valve
- 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 belleville spring provided with a centering ring groove. The belleville spring comprises a belleville spring body, wherein a circle of centering ring grooves with arc-shaped cross sections is formed in the external inclined surface of the belleville spring body; and the circle radiuses of the centering ring grooves are larger than the radius of a steel ball which is mounted in a ballistic curve groove formed in a base of an engine valve rotating mechanism. After the belleville spring provided with the centering ring groove is mounted on the engine valve rotating mechanism, one part of the top end of the steel ball on the engine valve rotating mechanism is imbedded into the arc centering ring grooves in the external inclined surface of the belleville spring body and has a centering effect on the belleville spring, so that the belleville spring does not deviate from the central position, and the engine valve rotating mechanism can drive a valve spring and a valve to rotate normally.
Description
Technical field
The utility model relates to a kind of belleville spring, particularly a kind of belleville spring for the engine valve actuating mechanism valve rotating mechanism.
Background technique
Valve rotating mechanism is a significant components in engine valve actuating mechanism, if valve produces uniformly in the course of the work, rotatablely moves slowly, can make the valve temperature even, also the carbon distribution on the conical surface and valve stem can be wiped, like this, not only can improve the lubricating condition of valve stem but also also all very favourable for the thermal conductivity of improving valve seat and conduit.Therefore valve-face just is difficult for producing corrosive wear and the bad phenomenon such as wearing and tearing are inhomogeneous.Adopt valve rotating mechanism often can make the life time of valve improve 2～5 times, and belong to environmentally friendly machine.
The working principle of valve rotating mechanism is as follows:
Valve rotating mechanism as shown in Figure 4, formed by rotating cap 1, belleville spring 2, base 3, steel ball 4 and return spring 5, steel ball 4 and return spring 5 are arranged in trajectory groove 3-1 on base 3, and accompanying drawing 5 is for removing the plan view after rotating cap 1 and belleville spring 2 in accompanying drawing 4.
When valve-closing, the elastic force of valve spring directly acts on the inboard of base 3 by rotating cap 1, belleville spring 2, and at this moment the elastic force of belleville spring 2 should be greater than the elastic force of valve spring, and the steel ball 4 in base 3 remains on the tip position of trajectory groove 3-1.
Along with the unlatching of valve, valve spring power increases gradually, when increasing to a certain degree, belleville spring 2 is flattened gradually, at this moment valve spring power acts on steel ball 4 by rotating cap 1 and belleville spring 2, and this just forces steel ball 4 one side rotations, and one side slides along the trajectory groove 3-1 of degree of deepening.
Because eight muscle below base 3 are stuck on cylinder cover and can not rotate, thereby make belleville spring 2 and rotating cap 1 along with steel ball 4 turns an angle along sliding of base trajectory groove 3-1, and then drive valve spring and valve turns an angle.
Along with closing of valve, valve spring power reduces gradually, and belleville spring 2 reverts back to again dish gradually, and steel ball 4 is also got back to original position under the effect of return spring 5.Like this, every unlatching once just makes valve turn an angle.
Tradition is used for the belleville spring 2 of valve rotating mechanism as shown in accompanying drawing 6,7, during work, belleville spring 2 is in the process by dish → pressing → dish, due to not centering, the phenomenon of central position appears departing from, cause the belleville spring 2 inhomogeneous and serious wear of wearing and tearing, even stuck, and then cause the inefficacy of valve rotating mechanism, can not drive valve spring and valve and rotate.
Summary of the invention
The purpose of this utility model be overcome the above-mentioned deficiency of prior art and provide a kind of with centering annular groove engine valve rotating machinery belleville spring.
The technical solution of the utility model is: a kind of belleville spring with the centering annular groove, and it comprises a belleville spring body, being provided with a ring cross-section on the outer inclined-plane of belleville spring body is the centering annular groove of arc.The radius of arc of centering annular groove is greater than being arranged on engine valve rotating machinery base the radius of steel ball in the trajectory groove.
With centering annular groove belleville spring be arranged on the engine valve rotating machinery after, in arc centering annular groove on this external inclined-plane of part embedding belleville spring, steel ball top on the engine valve rotating machinery, belleville spring is played certralizing ability, make belleville spring not depart from the central position, guarantee that the engine valve rotating machinery drives valve spring and valve normal rotation.
The utility model compared with prior art has following features:
1, the centering annular groove on belleville spring with whole belleville spring impact briquetting, just improves grinding tool and do not increase operation, and precision is high, the cycle is short, cost is low;
2, the steel ball on valve rotating mechanism slides in the centering annular groove of belleville spring, and belleville spring is played certralizing ability, avoided belleville spring to depart from central position and stuck phenomenon, and even wearing is consistent, has improved the working life of belleville spring.
Below in conjunction with the drawings and specific embodiments, detailed construction of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the A-A sectional view in accompanying drawing 1;
Accompanying drawing 5 is for removing the plan view after rotating cap and belleville spring in accompanying drawing 4;
Accompanying drawing 6 is existing disk-shape spring structure schematic diagram;
Accompanying drawing 7 is the B-B sectional view in accompanying drawing 6.
Embodiment
A kind of belleville spring with the centering annular groove, it comprises a belleville spring body 6, being provided with a ring cross-section on the outer inclined-plane of belleville spring body 6 is the centering annular groove 6-1 of arc, and the radius of arc of centering annular groove 6-1 is greater than being arranged on engine valve rotating machinery base 3 radius of steel ball 4 in trajectory groove 3-1.
Claims (2)
- One kind with centering annular groove belleville spring, it is characterized in that: it comprises a belleville spring body, being provided with a ring cross-section on the outer inclined-plane of belleville spring body is the centering annular groove of arc.
- 2. a kind of belleville spring with the centering annular groove according to claim 1, it is characterized in that: the radius of arc of centering annular groove is greater than being arranged on engine valve rotating machinery base the radius of steel ball in the trajectory groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433592 CN202970836U (en) | 2012-08-29 | 2012-08-29 | Belleville spring provided with centering ring groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433592 CN202970836U (en) | 2012-08-29 | 2012-08-29 | Belleville spring provided with centering ring groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970836U true CN202970836U (en) | 2013-06-05 |
Family
ID=48511923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220433592 Expired - Fee Related CN202970836U (en) | 2012-08-29 | 2012-08-29 | Belleville spring provided with centering ring groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797530A (en) * | 2012-08-29 | 2012-11-28 | 湖南天雁机械有限责任公司 | Belleville spring with centering ring groove |
-
2012
- 2012-08-29 CN CN 201220433592 patent/CN202970836U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797530A (en) * | 2012-08-29 | 2012-11-28 | 湖南天雁机械有限责任公司 | Belleville spring with centering ring groove |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20190829 |