CN2363062Y - Single body type swing-arm base - Google Patents
Single body type swing-arm base Download PDFInfo
- Publication number
- CN2363062Y CN2363062Y CN 96222146 CN96222146U CN2363062Y CN 2363062 Y CN2363062 Y CN 2363062Y CN 96222146 CN96222146 CN 96222146 CN 96222146 U CN96222146 U CN 96222146U CN 2363062 Y CN2363062 Y CN 2363062Y
- Authority
- CN
- China
- Prior art keywords
- rocker arm
- arm base
- swing
- oil
- arm bracket
- 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
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model relates to a swing-arm base of an internal combustion engine. A shaft journal (2) and a swing-arm base body (1) are integrated, and inner drilling oil passages (8) (10) are communicated with an oil outlet (11) of a cylinder cap. Each swing-arm base is positioned by two positioning pins, and is tightly fixed on the cylinder cap by three bolts (4). The longitudinal and transverse directions are stable, and the rigidity is high. A circular arc notch (3) is arranged on the swing-arm base body, and an oil nozzle (5) (or a plug) can be arranged by the lower space. The single body type swing-arm base has the advantages of compact structure and high rigidity of the design scheme. The utility model is suitable for the machine type with high speed and high strengthening.
Description
The utility model relates to the rocker arm assembly in cyclically operating valve (distribution device) driving mechanism that internal-combustion engine uses.
The breathing action of four stroke engine moves by distribution device and finishes, in order to guarantee the normal at a high speed running of distribution device; rocker arm bracket should guarantee high rigidity; must provide an amount of lubricant oil to rocking arm, valve, push rod, tappet again; the rocking arm bearing device also must satisfy the requirement of general arrangement simultaneously; especially under Injection Pump and valve cam homonymy condition, abdicate the space, satisfy the mounting arrangements of oil nozzle.Present existing design proposal is difficult to address these problems simultaneously.U.S. Pat 4655177 has proposed a rocker arm bracket assembly of being made up of rocking arm flap, pitman arm shaft, rocker arm bracket and pitman arm shaft transport pipe etc., but this apparatus parts is many, rigidity is low, poor reliability, and the high-speed high-performance motor is still had deficiency.
The purpose of this utility model provides a kind of monomer-type rocker arm bracket, and it is made into one with above-mentioned part, thereby has improved the stiff stability of rocker arm bracket greatly, and has also left very big variation leeway in shape.
The purpose of this utility model is to realize like this, the monomer-type rocker arm bracket is the monolithic construction that intake and exhaust pitman arm shaft and rocker arm bracket body are fused, on rocker arm bracket, be provided with positioning pin hole and screw, can directly be fixed on the cylinder head, guaranteed that assembly has better stiff stability; And be provided with oilhole in part inside, and be communicated with oil outlet on cylinder head oilhole and the pitman arm shaft, guaranteed the lubricating requirement of distribution device.
Accompanying drawing 1 is the structural drawing of the utility model monomer-type rocker arm bracket, and Fig. 2 is the layout schematic representation of rocker arm bracket.1 is the rocker arm bracket body among the figure, and 2 is the rocking arm axle journal, and 3 is arc gap, and 4 is bolt, and 5 is oil nozzle, 6 is locating stud, and 7 is cylinder head, and 8 is the axle journal oilhole, and 9 is the cylinder head oil duct, 10 is body oil duct inclined hole, and 11 is the cylinder head oil outlet, and 12 is rocking arm axle journal oil outlet, and 13 is rocking arm.
Provide the utility model embodiment in conjunction with the accompanying drawings.
Rocker arm bracket body (1) and the rocking arm axle journal (2) of the utility model single body type swing-arm base are an integral body; Forging (casting) part by monomer-type processes; Rocker arm bracket body (1) is fixed on the cylinder head (7) by three bolts (4); In length and breadth to very high rigidity and stability are arranged; There is two alignment pins (6) location its bottom surface; Guaranteed that the rocking arm center is correct; Stretch out intake and exhaust rocking arm axle journal (2) in the court of a feudal ruler, both sides of body (1); Support arm; Be drilled with cylinder head oil duct (9) on the cylinder head; All be drilled with cylinder oil outlet (11) with each cylinder rocker arm bracket opposite position; In axle journal, be drilled with again oilhole (8) and inclined hole (10); Communicate with cylinder cap oil outlet (11), guarantee to rocking arm axle journal fuel feeding, again by the oil outlet (12) on the rocking arm axle journal and rocking arm (13) to tappet; Push rod; The lubricating oil that the valve supply is an amount of. Rocker arm bracket body side has an orthodrome breach (3), utilizes its lower room to arrange oil nozzle (5), makes oil nozzle more near cylinder axis, has guaranteed combustion performance.
The utility model monomer-type rocker arm bracket both can be used for single-cylinder one-cap, can be used for the cover of multicylinder one type again.This rocker arm bracket component part number is few, and structural rigidity is high again, need not external oil pipe, and the reliability height adapts to high speed, the high type needs of strengthening.Left and right sides axle journal also can be made coaxial, and the manufacturing of being more convenient for is keeped in repair also very convenient.
Claims (3)
1 one kinds of rocker arm brackets that are used for internal-combustion engine is characterized in that rocking arm axle journal (2) and rocker arm bracket body (1) are in aggregates, connect with cylinder head (7) with bolt (4) and locating stud (6).
2 rocker arm brackets according to claim 1 is characterized in that a side of rocker arm bracket body (1) has garden arc breach (3), utilize its spatial arrangement oil nozzle (or spark plug) (5).
3 rocker arm brackets according to claim 1 and 2, the oil leab that it is characterized in that rocker arm bracket is built-in passage, oil duct (10) is pressed on the cylinder head plane by the rocker arm bracket bottom plane and links to each other with cylinder head oil outlet (11), oil duct (10) and (8) are intercommunicating pore, are connected with oil outlet (12) on the rocking arm axle journal (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96222146 CN2363062Y (en) | 1996-11-05 | 1996-11-05 | Single body type swing-arm base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96222146 CN2363062Y (en) | 1996-11-05 | 1996-11-05 | Single body type swing-arm base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2363062Y true CN2363062Y (en) | 2000-02-09 |
Family
ID=33901763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96222146 Expired - Lifetime CN2363062Y (en) | 1996-11-05 | 1996-11-05 | Single body type swing-arm base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2363062Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787876A (en) * | 2012-07-26 | 2012-11-21 | 中国兵器工业集团第七0研究所 | Rocker arm support structure for engine |
| CN104100317A (en) * | 2014-07-25 | 2014-10-15 | 潍柴动力扬州柴油机有限责任公司 | Engine and rocker arm assembly thereof |
-
1996
- 1996-11-05 CN CN 96222146 patent/CN2363062Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787876A (en) * | 2012-07-26 | 2012-11-21 | 中国兵器工业集团第七0研究所 | Rocker arm support structure for engine |
| CN104100317A (en) * | 2014-07-25 | 2014-10-15 | 潍柴动力扬州柴油机有限责任公司 | Engine and rocker arm assembly thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |