CN204152576U - Diesel motor rockshaft - Google Patents
Diesel motor rockshaft Download PDFInfo
- Publication number
- CN204152576U CN204152576U CN201420509752.6U CN201420509752U CN204152576U CN 204152576 U CN204152576 U CN 204152576U CN 201420509752 U CN201420509752 U CN 201420509752U CN 204152576 U CN204152576 U CN 204152576U
- Authority
- CN
- China
- Prior art keywords
- arm shaft
- pitman arm
- pitman
- arm
- rocking arm
- 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
Links
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a kind of diesel motor rockshaft, its structure is: pitman arm shaft is provided with N number of rocking arm oiling groove and the outer oilhole of rocking arm; pitman arm shaft is equipped with 2 bushing oil holes with rocker arm bush cooperation place; extreme pressure lubricant enters pitman arm shaft inner chamber by oil inlet hole, oil inlet hole and the outer oilhole intercommunication of rocking arm.Lubricating oil enters pitman arm shaft inner chamber from pitman arm shaft oil inlet hole, then enters bushing oil hole and the outer oilhole of rocking arm respectively, enters into rocking arm, then lubricate valve gap bridge after full rocking arm oiling groove.Pitman arm shaft adopts the structure of outer oilhole and the intercommunication of pitman arm shaft inner chamber, when meet lubricate between rocking arm and rocker arm bush, strengthen the intensity of pitman arm shaft.Pitman arm shaft arranges the effect that a locating stud can play location.Rocking arm and the position joined together by rocker arm bush adopt two bushing oil holes, are very beneficial for the lubrication between rocking arm and rocker arm bush, and this measure can improve the working strength of pitman arm shaft.
Description
Technical field
The utility model belongs to engine components manufacturing technology, is specifically related to the pitman arm shaft in a kind of diesel engine.
Background technique
The effect of motor rockshaft provides support to rocking arm, and the lubrication of rocking arm and component thereof enters pitman arm shaft inner chamber by oil duct, then arrive lubricant housings by the oil hole on lining and axle.The oil hole of pitman arm shaft is placed in the position joined together by pitman arm shaft and rocker arm bush.Diesel engine for Four valve configuration is full, and each rocking arm drives two valves, due to the increase of driving force, just has higher requirement to the intensity of rocking arm and pitman arm shaft and greasy property.The rocking arm of two valve diesel only need drive a valve, therefore the design of its oil leab is relatively just fairly simple, the oil hole that the Position Design one only coordinated at pitman arm shaft and lining is larger, and the two ends of pitman arm shaft directly process a bolt hole, directly with Bolt to position and fix.If but the pitman arm shaft of four-valve diesel engine still adopts this structure, so the intensity of pitman arm shaft and the lubrication between rocking arm and rocker arm bush can not meet the demands.
The utility model proposes a kind of pitman arm shaft for this reason, the offering question of four-valve diesel engine pitman arm shaft location and oil hole can be solved.
Summary of the invention
The purpose of this utility model is, when not changing two valve lever pin overall dimensions, designs a kind of diesel motor rockshaft, can meet four-valve diesel engine to pitman arm shaft intensity and the lubricating requirement between pitman arm shaft and lining.
The technological scheme taked for realizing this object is: pitman arm shaft is provided with N number of rocking arm oiling groove and the outer oilhole of rocking arm; pitman arm shaft is equipped with 2 bushing oil holes with rocker arm bush cooperation place; extreme pressure lubricant enters pitman arm shaft inner chamber by oil inlet hole, oil inlet hole and the outer oilhole intercommunication of rocking arm.
The beneficial effect of feature of the present utility model and generation is, pitman arm shaft adopts the structure of outer oilhole and the intercommunication of pitman arm shaft inner chamber, when meet lubricate between rocking arm and rocker arm bush, strengthen the intensity of pitman arm shaft.Pitman arm shaft arranges the effect that a locating stud can play location.Rocking arm and the position joined together by rocker arm bush adopt two bushing oil holes, are very beneficial for the lubrication between rocking arm and rocker arm bush, and this measure can improve the working strength of pitman arm shaft.
Accompanying drawing explanation
Fig. 1 is Principles and methods schematic diagram of the present utility model.
Fig. 2 is the inner section sectional view of Fig. 1.
Fig. 3 is figure the utility model left part internal structure sectional drawing.
Fig. 4 is pitman arm shaft bushing oil hole sectional drawing.
Fig. 5 is the outer oilhole sectional drawing of rocking arm.
Embodiment
Structure of the present utility model to be described further by specific embodiment below in conjunction with accompanying drawing 1-5.Diesel motor rockshaft, its structure is that pitman arm shaft 1 is provided with N number of rocking arm oiling groove 2 and the outer oilhole 3 of rocking arm; pitman arm shaft is equipped with 2 bushing oil holes 4 with rocker arm bush cooperation place, and extreme pressure lubricant enters pitman arm shaft inner chamber 6 by oil inlet hole 5, oil inlet hole and the outer oilhole intercommunication of rocking arm.The upper end of pitman arm shaft is provided with positioning pin hole 7, and oil inlet hole and positioning pin hole are in same straight line.The upper and lower two ends of pitman arm shaft are respectively equipped with oil stifled 8, for being released by lubricant oil.
Pitman arm shaft is used for supporting rocking arm, and one end of rocking arm connects with camshaft, and the other end of rocking arm contacts with valve.Pitman arm shaft is positioned by positioning pin hole and rocker shaft bed, and rocker shaft bed connects with cylinder head.The present embodiment is the diesel engine of Four valve configuration, with 8 rocking arms on pitman arm shaft, so be provided with 8 rocking arm oiling grooves.There are 2 lining oil holes pitman arm shaft and each rocker arm bush cooperation place, and two apertures are identical.Because these two holes are in the same side, a hole can only be seen in C-C section (as Fig. 4) direction.Wherein, the diameter of the outer oilhole of rocking arm and bushing oil hole is 2.4mm; The diameter of pitman arm shaft inner chamber is 6mm; The diameter of oil inlet hole is 4.4mm.
High-tension lubrication machine oil from oil pump enters pitman arm shaft inner chamber from pitman arm shaft oil inlet hole, and the machine oil flowed out from inner chamber enters bushing oil hole respectively, lubricates rocker arm bush (turning joint).A part of machine oil enters the outer oilhole of rocking arm simultaneously, enters into rocking arm after full rocking arm oiling groove, then lubricates valve gap bridge.The layout of this lubricating oil path makes the lubrication of pitman arm shaft obtain reasonable layout, therefore from motor reliability of operation and Security aspect, improves the working strength of pitman arm shaft.
Claims (3)
1. diesel motor rockshaft, it is characterized in that pitman arm shaft (1) is provided with N number of rocking arm oiling groove (2) and the outer oilhole (3) of rocking arm; pitman arm shaft is equipped with 2 bushing oil holes (4) with rocker arm bush cooperation place; extreme pressure lubricant enters pitman arm shaft inner chamber (6) by oil inlet hole (5), oil inlet hole and the outer oilhole intercommunication of rocking arm.
2. according to diesel motor rockshaft according to claim 1, it is characterized in that: be provided with positioning pin hole (7) in the upper end of described pitman arm shaft, oil inlet hole and positioning pin hole are in same straight line, and the upper and lower two ends of described pitman arm shaft are respectively equipped with oil stifled (8).
3. according to the diesel motor rockshaft described in claim 1 or 2, it is characterized in that: the diameter of the outer oilhole (3) of described rocking arm and bushing oil hole (4) is 2.4mm; The diameter of described pitman arm shaft inner chamber (6) is 6mm; The diameter of described oil inlet hole (5) is 4.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509752.6U CN204152576U (en) | 2014-09-05 | 2014-09-05 | Diesel motor rockshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509752.6U CN204152576U (en) | 2014-09-05 | 2014-09-05 | Diesel motor rockshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152576U true CN204152576U (en) | 2015-02-11 |
Family
ID=52510701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420509752.6U Expired - Fee Related CN204152576U (en) | 2014-09-05 | 2014-09-05 | Diesel motor rockshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443184A (en) * | 2015-12-30 | 2016-03-30 | 广西玉柴机器股份有限公司 | Engine rocker shaft |
-
2014
- 2014-09-05 CN CN201420509752.6U patent/CN204152576U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443184A (en) * | 2015-12-30 | 2016-03-30 | 广西玉柴机器股份有限公司 | Engine rocker shaft |
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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: 20150211 Termination date: 20200905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |