CN2851585Y - Rocker arm fixing device for cylinder head of gasoline engine - Google Patents
Rocker arm fixing device for cylinder head of gasoline engine Download PDFInfo
- Publication number
- CN2851585Y CN2851585Y CN 200520072297 CN200520072297U CN2851585Y CN 2851585 Y CN2851585 Y CN 2851585Y CN 200520072297 CN200520072297 CN 200520072297 CN 200520072297 U CN200520072297 U CN 200520072297U CN 2851585 Y CN2851585 Y CN 2851585Y
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- arm shaft
- pitman arm
- rocker arm
- fixing device
- 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
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a rocker arm fixing device for a cylinder head of a gasoline engine, which comprises a rocker arm shaft connected with two air valve rods in parallel, wherein both ends and the middle of the rocker arm shaft are respectively fixed to a support seat; the support seat is fixed to the cylinder head; two rocker arms are simultaneously sheathed on the rocker arm shaft; one end of the rocker arm is abutted on a top rod; the other end is abutted on the air valve rods. The two rocker arms of the utility model are arranged on the same rocker arm shaft. The utility model has the advantages of simple structure, convenient installation and low cost.
Description
Technical field
The utility model relates to a kind of gasoline engine cylinder head tremor arm fixing device.
Background technique
As shown in Figure 1 and Figure 2, rocking arm fixing device for gasoline engine cylinder head in the prior art, one side of cylinder head is provided with two valve valve rods, opposite sides and is provided with two push rods, on the perpendicular position of the line of two valve valve rods, be provided with two pitman arm shafts, be with two rocking arms on the pitman arm shaft; an end of rocking arm conflict on the push rod, the other end conflicts on the valve valve rod; during work, the pushing tow valve valve rod unlatching or close valve again of push rod pushing tow rocking arm, rocking arm.
The shortcoming of this kind structure is:
1. because pitman arm shaft and vertical setting of valve valve rod line,, and must there be the rocker arm bracket of special use to support pitman arm shaft so two rocking arms must be installed in respectively on two pitman arm shafts.
2. the design of two pitman arm shafts and rocker arm bracket makes the cylinder head structure complicated more, has increased manufacturing and installation cost.
Summary of the invention
The purpose of this utility model is: a kind of gasoline engine cylinder head tremor arm fixing device is provided, and its two rocking arms are installed on the same pitman arm shaft, and are simple in structure, easy for installation, low cost of manufacture.
The technical solution of the utility model is: a kind of gasoline engine cylinder head tremor arm fixing device, comprise the pitman arm shaft that is installed on the cylinder head, two rocking arms that are enclosed within on the pitman arm shaft; on the push rod that an end of rocking arm is conflicted, the other end conflicts on the valve valve rod; described two rocking arms are enclosed within on the same pitman arm shaft, and pitman arm shaft is parallel with the line of two valve valve rods.
The further technological scheme of the utility model is: a kind of gasoline engine cylinder head tremor arm fixing device, comprise the pitman arm shaft that is installed on the cylinder head, two rocking arms that are enclosed within on the pitman arm shaft; on the push rod that an end of rocking arm is conflicted, the other end conflicts on the valve valve rod; described two rocking arms are enclosed within on the same pitman arm shaft, and pitman arm shaft is parallel with the line of two valve valve rods; The two ends of described pitman arm shaft are separately fixed on the bearing, and two bearings are fixedly supported on the cylinder head.
The more detailed technological scheme of the utility model is: a kind of gasoline engine cylinder head tremor arm fixing device, comprise the pitman arm shaft that is installed on the cylinder head, two rocking arms that are enclosed within on the pitman arm shaft; on the push rod that an end of rocking arm is conflicted, the other end conflicts on the valve valve rod; described two rocking arms are enclosed within on the same pitman arm shaft, and pitman arm shaft is parallel with the line of two valve valve rods; The two ends of described pitman arm shaft are separately fixed on the bearing, and two bearings are fixedly supported on the cylinder head; Also be provided with a slice bearing in the middle of the pitman arm shaft between described two rocking arms, bearing is fixedly supported on the cylinder head.
The utility model has the advantages that:
1. pitman arm shaft of the present utility model and the parallel installation of the line of valve valve rod make two rocking arms can be enclosed within simultaneously on the pitman arm shaft, and be simple in structure, easy for installation.
2. owing to only need a pitman arm shaft, therefore fix the support pitman arm shaft with regard to need not to design special rocker arm bracket, and as long as two or three bearings also simplify the structure, made things convenient for installation.
Description of drawings
The utility model will be further described below in conjunction with drawings and Examples:
Fig. 1, Fig. 2 are the structural representation (valve valve rod, push rod do not draw) of existing cylinder head;
Fig. 3, Fig. 4 are structural representation of the present utility model (valve valve rod, push rod do not draw).
Wherein: 1 cylinder head; 2 pitman arm shafts; 3 rocking arms; 4 bearings; 5 valve valve rod holes; 6 jogger holes.
Embodiment
Embodiment: as shown in Figure 1 and Figure 2, a kind of gasoline engine cylinder head tremor arm fixing device, comprise a pitman arm shaft 2; two ends of pitman arm shaft 2 and centre are separately fixed on the bearing 4; bearing 4 is fixed on the cylinder head 1; be with two rocking arms 3 on the pitman arm shaft 2 simultaneously with the parallel installation of line of two valve valve rods, an end of rocking arm 3 conflict on the push rod, the other end conflicts on the valve valve rod.
Pitman arm shaft 2 of the present utility model and the parallel installation of the line of valve valve rod make two rocking arms 3 can be enclosed within simultaneously on the pitman arm shaft 2, and be simple in structure, easy for installation; Owing to only need a pitman arm shaft 2, therefore fix support pitman arm shaft 2 with regard to need not to design special rocker arm bracket, and as long as two or three bearings 4 also simplify the structure, made things convenient for installation.
Claims (3)
1. gasoline engine cylinder head tremor arm fixing device, comprise the pitman arm shaft (2) that is installed on the cylinder head (1), two rocking arms (3) that are enclosed within on the pitman arm shaft (2); on the push rod that an end of rocking arm (3) is conflicted, the other end conflicts on the valve valve rod; it is characterized in that: described two rocking arms (3) are enclosed within on the same pitman arm shaft (2), and pitman arm shaft (2) is parallel with the line of two valve valve rods.
2. gasoline engine cylinder head tremor arm fixing device according to claim 1 is characterized in that: the two ends of described pitman arm shaft (2) are separately fixed on the bearing (4), and two bearings (4) are fixedly supported on the cylinder head (1).
3. gasoline engine cylinder head tremor arm fixing device according to claim 2 is characterized in that: also be provided with a slice bearing (4) in the middle of the pitman arm shaft (2) between described two rocking arms (3), bearing (4) is fixedly supported on the cylinder head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072297 CN2851585Y (en) | 2005-05-31 | 2005-05-31 | Rocker arm fixing device for cylinder head of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072297 CN2851585Y (en) | 2005-05-31 | 2005-05-31 | Rocker arm fixing device for cylinder head of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851585Y true CN2851585Y (en) | 2006-12-27 |
Family
ID=37585541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520072297 Expired - Fee Related CN2851585Y (en) | 2005-05-31 | 2005-05-31 | Rocker arm fixing device for cylinder head of gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851585Y (en) |
-
2005
- 2005-05-31 CN CN 200520072297 patent/CN2851585Y/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20140531 |