CN201246198Y - Rock arm mechanism of internal combustion engine - Google Patents
Rock arm mechanism of internal combustion engine Download PDFInfo
- Publication number
- CN201246198Y CN201246198Y CNU2008201892415U CN200820189241U CN201246198Y CN 201246198 Y CN201246198 Y CN 201246198Y CN U2008201892415 U CNU2008201892415 U CN U2008201892415U CN 200820189241 U CN200820189241 U CN 200820189241U CN 201246198 Y CN201246198 Y CN 201246198Y
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- CN
- China
- Prior art keywords
- rocker
- arm
- rocker arm
- assembly
- arm assembly
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- 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 rocker arm mechanism of an internal-combustion engine, which comprises rocker arm assemblies, the rocker arm assembly is connected with a rocker-arm support through a rocker-arm shaft, and a needle roller bearing is arranged between the rocker-arm shaft and the rocker-arm support. An oil supply hole is formed on the rocker arm assembly, and the oil supply hole is communicated with the position of the needle roller bearing. According to the characteristics of a vertical-type single-cylinder water cooling diesel engine, the utility model adopts that the needle roller bearing is arranged between the rocker-arm support and the rocker-arm shaft. Lubricating grease is coated on the needle roller bearing, and the modes of lubricating grease lubricate and splash lubrication is adopted on the working surfaces respectively between the rocker arm assembly of an intake valve and the rocker-arm shaft, and the rocker arm assembly of the exhaust valve and the rocker-arm shaft; the inherent fit clearance of a friction pair can ensure a sufficient lubrication between the rocker arm assembly and the rocker-arm shaft and a sufficient lubricating oil supply, thereby thoroughly solving the problem that the oil mass needed by the surface of the friction pair can not be ensured only by splash lubrication in the prior art. The utility model has the characteristics of simple and reasonable structure, low manufacturing cost and long service life.
Description
Technical field
The utility model relates to the rocker arm body of a kind of internal-combustion engine, particularly a kind of internal-combustion engine.
Background technique
Common in the market internal-combustion engine as diesel engine, adopts sliding bearing to connect between its pitman arm shaft and the rocking arm, reach lubrication effect by mandatory lubricating.But, because the restriction of the various factors of single cylinder diesel self, can't adopt mandatory lubricating to realize lubricated to rocker arm chamber inner chamber movement parts, and can only adopt the splash lubrication form.Between pitman arm shaft and the rocking arm as adopt sliding bearing to connect, lubricant oil can not enter axle sleeve by splash lubrication, causes it to wear and tear prematurely, thereby has restricted the development of the past high speed direction of diesel engine to a certain extent.At this situation, some manufacturer has done a little improvement, as disclosing a kind of diesel engine pitman arm shaft among the Chinese patent literature CN 201059206Y, comprise the pitman arm shaft body; the two ends of pitman arm shaft body are provided with rocker shaft, it is characterized in that: the pitman arm shaft body is provided with and corresponding two positioning holes of rocker arm bracket; The pitman arm shaft body is provided with first bolt hole and second bolt hole that is used to install pitman arm shaft, also is provided with the lubricating oil duct that pressure oil is provided to rocking arm in pitman arm shaft body and the rocker shaft.Lubricating oil duct comprises that the pitman arm shaft body is provided with external pressure oil oil inlet hole, and the external peripheral surface of rocker shaft is provided with the oil groove of arc-shaped recess, is provided with the passage that is communicated with oil groove and pressure oil taper oil inlet hole in the pitman arm shaft body.Oil groove is the shallow circular arcs in middle dark two ends.Passage comprise along the pitman arm shaft body shaft to and depart from the penetration hole of its axis, the two ends of penetration hole are provided with the sealing plug, airtight penetration hole is communicated with the pressure oil oil inlet hole, the two ends of airtight penetration hole are provided with the oil outlet that is communicated with the two corresponding to the position of oil groove.Though the diesel engine pitman arm shaft of this structure can provide to a certain degree lubricated,, its fabricating cost height, safeguard also cumbersome.
The model utility content
The purpose of this utility model aim to provide a kind of simple and reasonable, fabricating cost is low, the rocker arm body of the internal-combustion engine of long service life, to overcome deficiency of the prior art.
Press the rocker arm body of a kind of internal-combustion engine of this purpose design, comprise Rocker arm assembly, Rocker arm assembly joins by pitman arm shaft and rocker arm bracket, and its structure characteristic is to be provided with needle bearing between pitman arm shaft and the rocker arm bracket.
Described Rocker arm assembly is provided with oil inlet hole, and oil inlet hole communicates with the needle bearing position.
Described Rocker arm assembly comprises exhaust valve rocker arm assembly and inlet valve rocker assembly, is respectively arranged with oil inlet hole on exhaust valve rocker arm assembly and the inlet valve rocker assembly.
Described oil inlet hole is tapered.
The utility model is primarily aimed at the characteristics of upright single cylinder water-cooling type diesel engine, and pitman arm shaft can not adopt mandatory lubricated, and between rocker arm bracket and pitman arm shaft needle bearing is set.Coat lubricating grease at needle bearing, inlet valve rocker axle assembly and exhaust valve rocker arm axle assembly come working surface between the lubricating detail by the mode of grease lubrication and splash lubrication respectively and between the pitman arm shaft, the matching gap of utilizing friction pair itself to exist can make between above Rocker arm assembly and the pitman arm shaft and obtain sufficient lubrication, and guaranteed the abundant supply of lubricant oil, thoroughly solved and having only depended on the lubricated problem that can not guarantee the required oil mass of surface of friction pair of the profit of splashing in the past.
After the diesel engine work, the passage that is communicated with gear chamber by the cylinder head front end by the lubricant mist that its motion evoked is transported to rocker arm chamber, and after entering into the taper oil inlet hole, flow between needle bearing and the rocker arm bracket, guaranteed in the rocker arm chamber each friction pair can appropriateness, obtain required lubricant oil equably, reach preferable lubrication effect.
The utility model so prolonged the working life of rocker arm body greatly, is safeguarded also quite simple owing to provide sufficient lubricant oil to supply with.
Description of drawings
Fig. 1 is the utility model one embodiment master's TV structure schematic representation.
Fig. 2 is the plan structure schematic representation of Fig. 1.
Fig. 3 is that the B-B of Fig. 2 is to broken section structure for amplifying schematic representation.
Fig. 4 is that the C-C of Fig. 2 is to broken section structure for amplifying schematic representation.
Among the figure: 1 is the exhaust valve rocker arm assembly, and 2 is oil inlet hole, and 3 is the inlet valve rocker assembly, and 4 is rocker arm bracket, and 5 is needle bearing, and 6 is pitman arm shaft.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Below be that example describes with the diesel engine.
Referring to Fig. 1-Fig. 4, the rocker arm body of this diesel engine comprises Rocker arm assembly, and Rocker arm assembly joins by pitman arm shaft 6 and rocker arm bracket 4, is provided with needle bearing 5 between pitman arm shaft and the rocker arm bracket.Rocker arm assembly is provided with taper oil inlet hole 2, and the taper oil inlet hole communicates with needle bearing 5 positions.Rocker arm assembly comprises exhaust valve rocker arm assembly 1 and inlet valve rocker assembly 3, is respectively arranged with taper oil inlet hole 2 on exhaust valve rocker arm assembly and the inlet valve rocker assembly.
Claims (4)
1. the rocker arm body of an internal-combustion engine comprises Rocker arm assembly, and Rocker arm assembly joins by pitman arm shaft (6) and rocker arm bracket (4), it is characterized in that being provided with between pitman arm shaft and the rocker arm bracket needle bearing (5).
2. according to the needle-type Valve Rocker Organization of the described internal-combustion engine of claim 1, it is characterized in that described Rocker arm assembly is provided with oil inlet hole (2), oil inlet hole communicates with needle bearing (5) position.
3. according to the needle-type Valve Rocker Organization of claim 1 or 2 described internal-combustion engines, it is characterized in that described Rocker arm assembly comprises exhaust valve rocker arm assembly (1) and inlet valve rocker assembly (3), is respectively arranged with oil inlet hole (2) on exhaust valve rocker arm assembly and the inlet valve rocker assembly.
4. according to the needle-type Valve Rocker Organization of the described internal-combustion engine of claim 3, it is characterized in that described oil inlet hole (2) is tapered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201892415U CN201246198Y (en) | 2008-08-28 | 2008-08-28 | Rock arm mechanism of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201892415U CN201246198Y (en) | 2008-08-28 | 2008-08-28 | Rock arm mechanism of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246198Y true CN201246198Y (en) | 2009-05-27 |
Family
ID=40730018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201892415U Expired - Fee Related CN201246198Y (en) | 2008-08-28 | 2008-08-28 | Rock arm mechanism of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246198Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117211942A (en) * | 2023-11-09 | 2023-12-12 | 常州市常和机械有限公司 | Automatic circulating water cooling structure of rocker arm |
-
2008
- 2008-08-28 CN CNU2008201892415U patent/CN201246198Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117211942A (en) * | 2023-11-09 | 2023-12-12 | 常州市常和机械有限公司 | Automatic circulating water cooling structure of rocker arm |
| CN117211942B (en) * | 2023-11-09 | 2024-01-02 | 常州市常和机械有限公司 | Automatic circulating water cooling structure of rocker arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG DELUX DIESEL ENGINE CO., LTD. Free format text: FORMER NAME: FOSHAN SHUNDE DELUX DIESEL ENGINE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528300 No. 23 Industrial Road, Shunde District, Guangdong, Foshan, Ronggui Patentee after: Guangdong Delux Diesel Engine Co., Ltd. Address before: 528300 No. 23 Industrial Road, Shunde District, Guangdong, Foshan, Ronggui Patentee before: Deli Diesel Engine Co., Ltd., Shunde District, Foshan City |
|
| DD01 | Delivery of document by public notice |
Addressee: Guangdong Delux Diesel Engine Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |