CN203879567U - Structure with underlying air valve rotary mechanism for 240 diesel engine - Google Patents
Structure with underlying air valve rotary mechanism for 240 diesel engine Download PDFInfo
- Publication number
- CN203879567U CN203879567U CN201420083308.2U CN201420083308U CN203879567U CN 203879567 U CN203879567 U CN 203879567U CN 201420083308 U CN201420083308 U CN 201420083308U CN 203879567 U CN203879567 U CN 203879567U
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- China
- Prior art keywords
- valve
- air valve
- spring
- boss
- lock
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a structure with an underlying air valve rotary mechanism for a 240 diesel engine. The structure comprises an air valve, an air valve rotary mechanism, an air valve conduit with a boss on the external diameter thereof, an air valve outer spring, an air valve inner spring and an air valve lock armor and lock armor sleeve, wherein the air valve outer spring and the air valve inner spring are arranged on a position above the boss of the air valve conduit, the air valve lock armor and lock armor sleeve is arranged on a position above the air valve outer spring and the air valve inner spring, and the air valve rotary mechanism is arranged between the air valve outer spring and the air valve inner spring and the boss. The structure takes advantages of a conventional gas distribution mechanism of the 240 diesel engine, and an air valve rotary mechanism can be added by replacing an air valve conduit and air valve inner and outer springs of the 240 diesel engine. The structure is highly universal.
Description
Technical field
The utility model relates to diesel engine field, relates in particular to a kind of valve rotating mechanism underneath type structure that is applicable to 240 diesel engines.
Background technique
During diesel engine work, valve working environment very severe, valve often leaks air in running, stuck, the phenomenons such as conduit eccentric wear, for solving these situations, valve rotating mechanism arises at the historic moment, valve rotating mechanism appears on external big marine diesel engine the earliest, in recent years, along with the reinforcement of China to autonomous Diesel Engine Development dynamics, on domestic marine diesel engine, also gradually at this, add this mechanism, but current less use also on locomotive, particularly for being equipped with on the old locomotive of 240 serial diesel oil, because of structural limitations, be difficult to add this mechanism, even if add reluctantly, its reliability and serviceability are all poor.
Summary of the invention
For addressing the above problem, the invention provides a kind of valve rotating mechanism underneath type structure that is applicable to 240 diesel engines, comprise that valve, valve rotating mechanism, external diameter are provided with the valve guide bushing of boss, outer valve spring, inner valve spring, valve lock first and lock first cover; Described outer valve spring and inner valve spring are arranged on the above position of valve guide bushing lug boss position, valve lock first and lock first are set on outer valve spring and the above position of inner valve spring, and valve rotating mechanism is arranged between outer valve spring and inner valve spring and boss.
Further, the boss of described valve guide bushing is two stairsteppings.
Further, boss is 37mm by the external diameter of inner ladder, and the external diameter of outer ladder is 56mm.
The beneficial effects of the utility model are:
1, reasonably utilized the structure of existing 240 Valve Gear of Diesels, existing 240 diesel engines only need to change outer spring in valve guide bushing, valve just can add valve rotating mechanism, has the feature of highly versatile.
2, the underlying of valve rotating mechanism can better utilize space, compares on valve rotating mechanism and puts, and in the situation that not changing other parts of distribution device, this rotating machinery can be done more strong, increases reliability and the serviceability of valve rotating mechanism.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1. valves wherein, 2. valve rotating mechanism, 3. valve guide bushing, 4. outer valve spring, 5. inner valve spring, 6. valve lock first and lock first cover.
Fig. 2 is the structural representation of valve guide bushing in prior art.
Fig. 3 is the structural representation of valve guide bushing in the utility model.
Embodiment
Because the air distribution structure of 240 diesel engines is compact, at valve head (and lock first place) without space mounting valve rotating mechanism, design principle of the present utility model is to adopt down valve rotating mechanism, by spring, lock first cover, lock first, drive valve Rotating with Uniform, with this, eliminate eccentric wear, the carbon distribution phenomenon of valve, improve valve working life.
Below in conjunction with accompanying drawing, the utility model is elaborated.
As shown in Figure 1, comprise that valve 1, valve rotating mechanism 2, external diameter are provided with the valve guide bushing 3 of boss, outer valve spring 4, inner valve spring 5, valve lock first and lock first cover 6.Described valve guide bushing 3 is outside equipped with outer valve spring 4 and inner valve spring 5, and valve lock first and lock first cover 6 arrange valve guide bushing 3 tops.Described outer valve spring 4 and inner valve spring 5 are arranged on the valve guide bushing 3 above positions of boss, and valve lock first and lock first cover 6 are arranged on outer valve spring 4 and the above position of inner valve spring 5.Valve rotating mechanism 2 is arranged between outer valve spring 4 and inner valve spring 5 and boss, with valve guide bushing 3 location, spring seat before replacing, it not only has the function of former cotter seat, can also be in valve switch process, because telescopic spring effect forms rotating force, force valve 1 axis Rotating with Uniform around self in opening-closing process, make valve 1 and air valve seat ring, valve guide bushing 3 uniform wears, grind mutually, eliminate the carbon deposit between them, prevent " gas leakage ", " stuck " phenomenon, valve 1 is heated equably, heat radiation, prevent valve retainer " distortion ", " stick up in the wrong ", extend service life more than 3 times.
For the installation of valve rotating mechanism 2, the utility model is out of shape traditional valve guide bushing structure: valve guide bushing structure of the prior art as shown in Figure 2, is externally provided with a boss, and external diameter is 32mm.Boss of the present utility model as shown in Figure 3, is two stairsteppings, and leaning on the external diameter of inner ladder is 37mm, and the external diameter of outer ladder is 56mm.Design is that installation for valve rotating mechanism provides enough support forces like this.
The beneficial effects of the utility model are:
1, reasonably utilized the structure of existing 240 Valve Gear of Diesels, existing 240 diesel engines only need to change outer spring in valve guide bushing, valve just can add valve rotating mechanism, has the feature of highly versatile.
2, the underlying of valve rotating mechanism can better utilize space, compares on valve rotating mechanism and puts, and in the situation that not changing other parts of distribution device, this rotating machinery can be done more strong, increases reliability and the serviceability of valve rotating mechanism.
Claims (3)
1. a valve rotating mechanism underneath type structure that is applicable to 240 diesel engines, is characterized in that, comprises that valve, valve rotating mechanism, external diameter are provided with the valve guide bushing of boss, outer valve spring, inner valve spring, valve lock first and lock first cover; Described outer valve spring and inner valve spring are arranged on the above position of valve guide bushing lug boss position, valve lock first and lock first are set on outer valve spring and the above position of inner valve spring, and valve rotating mechanism is arranged between outer valve spring and inner valve spring and boss.
2. the valve rotating mechanism underneath type structure that is applicable to 240 diesel engines as claimed in claim 1, is characterized in that, the boss of described valve guide bushing is two stairsteppings.
3. the valve rotating mechanism underneath type structure that is applicable to 240 diesel engines as claimed in claim 2, is characterized in that, boss is 37mm by the external diameter of inner ladder, and the external diameter of outer ladder is 56mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083308.2U CN203879567U (en) | 2014-02-26 | 2014-02-26 | Structure with underlying air valve rotary mechanism for 240 diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083308.2U CN203879567U (en) | 2014-02-26 | 2014-02-26 | Structure with underlying air valve rotary mechanism for 240 diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879567U true CN203879567U (en) | 2014-10-15 |
Family
ID=51680074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083308.2U Expired - Lifetime CN203879567U (en) | 2014-02-26 | 2014-02-26 | Structure with underlying air valve rotary mechanism for 240 diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329500A (en) * | 2014-10-17 | 2015-02-04 | 南车玉柴四川发动机股份有限公司 | Gas valve conical surface sealing method with cold state angle difference |
-
2014
- 2014-02-26 CN CN201420083308.2U patent/CN203879567U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329500A (en) * | 2014-10-17 | 2015-02-04 | 南车玉柴四川发动机股份有限公司 | Gas valve conical surface sealing method with cold state angle difference |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 641301 Ziyang City, Sichuan province Yanjiang District No. 77 City Road four Patentee after: SICHUAN YCRRC ENGINE CO.,LTD. Address before: 641301 Ziyang City, Sichuan province Yanjiang District No. 77 City Road four Patentee before: YCSR Sichuan Engine Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Structure with underlying air valve rotary mechanism for 240 diesel engine Effective date of registration: 20200707 Granted publication date: 20141015 Pledgee: Guangxi Yuchai Machinery Group Co.,Ltd. Pledgor: SICHUAN YCRRC ENGINE Co.,Ltd. Registration number: Y2020980003846 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |