CN102242649A - Rock arm shaft - Google Patents
Rock arm shaft Download PDFInfo
- Publication number
- CN102242649A CN102242649A CN201110209792XA CN201110209792A CN102242649A CN 102242649 A CN102242649 A CN 102242649A CN 201110209792X A CN201110209792X A CN 201110209792XA CN 201110209792 A CN201110209792 A CN 201110209792A CN 102242649 A CN102242649 A CN 102242649A
- Authority
- CN
- China
- Prior art keywords
- axle body
- oil
- arm shaft
- shaft body
- rock 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.)
- Pending
Links
- 239000011435 rock Substances 0.000 title abstract 9
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract 9
- 239000010687 lubricating oil Substances 0.000 abstract 5
- 239000000314 lubricant Substances 0.000 description 7
- 238000005461 lubrication Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
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- Lubrication Of Internal Combustion Engines (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention aims to provide a rock arm shaft which is easily fixed and can provide a good lubricating oil path. The rock arm shaft provided by the invention comprises a hollow shaft body, a plurality of first oil outlets communicated with the interior of the shaft body, and a plurality of second oil outlets and oil inlets communicated with the interior of the shaft body, wherein the plurality of first oil outlets are arranged at the lateral part of the shaft body; the plurality of second oil outlets and oil inlets are arranged at the bottom of the shaft body; and the two sides of the shaft body are symmetrically provided with grooves. When the rock arm shaft is installed, the shaft body is tightly clamped by virtue of bolts in the grooves at the two sides of the shaft body and is fixed on a rock arm shaft support, so that the rack arm shaft can be prevented from performing radial or axial movement, and the grooves are not communicated with the interior of the shaft body, thereby generating no lubricating oil leakage, saving space and reducing the overall weight of the rock arm shaft. During using, lubricating oil in the lubricating oil path of an engine enters the interior of the shaft body through the oil inlets at the bottom of the shaft body, and flows to the lubricating oil path in a rock arm through the first oil outlets, and flows out through the second oil outlets, so as to lubricate the contact part of the rock arm and the rock arm shaft.
Description
Technical field
The invention belongs to the engine manufacturing technology field, specially refer to a kind of pitman arm shaft of motor.
Background technique
The conventional rocker axle only plays the effect of simple connection valve rocker, though simple oil leab is arranged on the axle body, effect is bad, can't provide well lubricated to distribution device.Can take place radially or move axially after the conventional rocker axle is installed, be difficult to be fixed on the motor, therefore generally on axle body, be provided for the tapped hole fixed, because this tapped hole through central lubrication oil hole, therefore causes oil leakage easily.
Summary of the invention
The objective of the invention is to propose a kind of pitman arm shaft that is easy to fix and can provide the good lubrication oil circuit.
Pitman arm shaft of the present invention comprises hollow axle body, and the axle body sidepiece has a plurality of first oil outlets that communicate with axle body inside, and the axle body bottom has a plurality of second oil outlet and oil inlet holes that communicate with axle body inside; Described axle body bilateral symmetry is provided with groove.
When mounted, groove in the axle body both sides utilizes bolt that axle body is clamped and is fixed on the pitman arm shaft bearing, so just can prevent that pitman arm shaft from taking place radially or move axially, and groove and axle body inside are disconnected, therefore can not cause the situation of oil leak, and saved the space, alleviated the pitman arm shaft overall weight.In the using process, lubricant oil in the engine lubrication oil duct enters into axle body inside through the oil inlet hole of axle body bottom, and flow to oil leab in the rocking arm through first oil outlet, and flow out through second oil outlet simultaneously, the contacting point of rocking arm and pitman arm shaft is lubricated.
Further, described axle body is provided with annular recess, can prevent further that pitman arm shaft from moving axially.
Further, described annular recess has two, and is arranged at the two ends of axle body respectively, and is convenient fixing.
Further, described oil inlet hole is arranged between the groove of axle body both sides, and lubricant oil just can enter in the axle body of pitman arm shaft through the pitman arm shaft bearing like this, helps the layout of engine lubrication oil duct.
Further, described axle body is provided with the recess that is communicated with second oil outlet at the side of second oil outlet, and this recess can store certain lubricant oil, thereby keeps the contacting point of rocking arm and rocking arm to have sufficient lasting lubricant oil to be lubricated.
Specifically, described recess can extend formed groove along the axle body axial direction for the both sides of second oil outlet; Recess can also extend formed groove along the axle body circumferencial direction for the both sides of second oil outlet.
Pitman arm shaft of the present invention has solved the sufficient lubrication problem between pitman arm shaft and the rocking arm, and has been fixed on easily on the motor by the reasonable Arrangement to the axle body oil duct, and oil leakage can't take place.
Description of drawings
Fig. 1 is the plan view of pitman arm shaft of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the worm's eye view of pitman arm shaft of the present invention.
Fig. 4 is the sectional view of the Vertical direction of pitman arm shaft of the present invention.
Embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail embodiment.
Embodiment 1:
As shown in the figure, the pitman arm shaft of present embodiment comprises hollow axle body 1, the closed at both ends of axle body 1, and the both sides of axle body 1 have a plurality of first oil outlets 2 that communicate with axle body inside, and axle body 1 bottom has a plurality of second oil outlet 3 and oil inlet holes 4 that communicate with axle body inside; Axle body 1 bilateral symmetry is provided with groove 5, and oil inlet hole 4 is arranged between the groove 5 of axle body both sides.
The two ends of axle body 1 are provided with annular recess 6, can prevent further that pitman arm shaft from moving axially.
When mounted, utilize bolt 8 that axle body 1 is clamped at groove 5 places of axle body both sides and be fixed on the pitman arm shaft bearing, so just can prevent that the pitman arm shaft generation radially or move axially.In the using process, lubricant oil in the engine lubrication oil duct enters into axle body inside through the oil inlet hole 4 of axle body bottom, and flow to oil leab in the rocking arm through first oil outlet 2, and flow out through second oil outlet 3 simultaneously, the contacting point of rocking arm and pitman arm shaft is lubricated.The both sides of second oil outlet 3 extend to form oil storage grooves 7 along axle body 1 axial direction, can store certain lubricant oil, thereby keep the contacting point of rocking arm and rocking arm to have sufficient lasting lubricant oil to be lubricated.
Claims (7)
1. a pitman arm shaft is characterized in that comprising hollow axle body, and the axle body sidepiece has a plurality of first oil outlets that communicate with axle body inside, and the axle body bottom has a plurality of second oil outlet and oil inlet holes that communicate with axle body inside; Described axle body bilateral symmetry is provided with groove.
2. pitman arm shaft according to claim 1 is characterized in that described axle body is provided with annular recess.
3. pitman arm shaft according to claim 2 is characterized in that described annular recess has two, and is arranged at the two ends of axle body respectively.
4. according to claim 1 or 2 or 3 described pitman arm shafts, it is characterized in that described oil inlet hole is arranged between the groove of axle body both sides.
5. according to claim 1 or 2 or 3 described pitman arm shafts, it is characterized in that described axle body is provided with the recess that is communicated with second oil outlet at the side of second oil outlet.
6. pitman arm shaft according to claim 5 is characterized in that described recess is that formed groove is extended along the axle body axial direction in the both sides of second oil outlet.
7. pitman arm shaft according to claim 5 is characterized in that described recess is that formed groove is extended along the axle body circumferencial direction in the both sides of second oil outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110209792XA CN102242649A (en) | 2011-07-26 | 2011-07-26 | Rock arm shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110209792XA CN102242649A (en) | 2011-07-26 | 2011-07-26 | Rock arm shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102242649A true CN102242649A (en) | 2011-11-16 |
Family
ID=44960871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110209792XA Pending CN102242649A (en) | 2011-07-26 | 2011-07-26 | Rock arm shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102242649A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5125373A (en) * | 1990-09-26 | 1992-06-30 | Atsugi Unisia Corporation | Oil passage structure for rocker-arm shaft for internal combustion engine |
| EP0663514A1 (en) * | 1994-01-18 | 1995-07-19 | IVECO FIAT S.p.A. | Assembly unit for a rocker shaft in a cylinder head of a heat engine |
| CN2705600Y (en) * | 2004-05-12 | 2005-06-22 | 重庆力帆实业（集团）有限公司 | Motorcycle engine rocker arm shaft |
| CN1648421A (en) * | 2004-12-27 | 2005-08-03 | 重庆宗申技术开发研究有限公司 | Air valve swinging arm shaft with oil pressure unloading plane |
| EP2078831A2 (en) * | 2008-01-09 | 2009-07-15 | Roller Bearing Company of America, Inc. | Surface treated rocker arm shaft |
| CN201661325U (en) * | 2010-03-25 | 2010-12-01 | 株洲湘火炬机械制造有限责任公司 | Novel valve rocker shaft |
-
2011
- 2011-07-26 CN CN201110209792XA patent/CN102242649A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5125373A (en) * | 1990-09-26 | 1992-06-30 | Atsugi Unisia Corporation | Oil passage structure for rocker-arm shaft for internal combustion engine |
| EP0663514A1 (en) * | 1994-01-18 | 1995-07-19 | IVECO FIAT S.p.A. | Assembly unit for a rocker shaft in a cylinder head of a heat engine |
| CN2705600Y (en) * | 2004-05-12 | 2005-06-22 | 重庆力帆实业（集团）有限公司 | Motorcycle engine rocker arm shaft |
| CN1648421A (en) * | 2004-12-27 | 2005-08-03 | 重庆宗申技术开发研究有限公司 | Air valve swinging arm shaft with oil pressure unloading plane |
| EP2078831A2 (en) * | 2008-01-09 | 2009-07-15 | Roller Bearing Company of America, Inc. | Surface treated rocker arm shaft |
| CN201661325U (en) * | 2010-03-25 | 2010-12-01 | 株洲湘火炬机械制造有限责任公司 | Novel valve rocker shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111116 |