CN202381132U - Valve tappet for engine - Google Patents
Valve tappet for engine Download PDFInfo
- Publication number
- CN202381132U CN202381132U CN2012200104952U CN201220010495U CN202381132U CN 202381132 U CN202381132 U CN 202381132U CN 2012200104952 U CN2012200104952 U CN 2012200104952U CN 201220010495 U CN201220010495 U CN 201220010495U CN 202381132 U CN202381132 U CN 202381132U
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- CN
- China
- Prior art keywords
- valve tappet
- engine
- approximate cone
- tappet
- hole
- 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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Abstract
The utility model discloses a valve tappet for an engine. The technical scheme of the valve tappet for the engine is that the valve tappet comprises a hollow bore, the upper portion of the hollow bore is provided with a column, the lower end of the column is smoothly connected with an approximate cone, and an oil duct at the bottom of the approximate cone is communicated with an oil flowing hole. The valve tappet for the engine has the advantages that the oil duct communicated with the outside is designed in the valve tappet to guarantee the requirement of lubrication; the bottom surface of the approximate cone is a part of a spherical surface so that the good contact between the valve tappet and the pushing rod is guaranteed; and special materials and a thermal treatment method are utilized so that the abrasive resistance and the service life of the tappet are guaranteed.
Description
Technical field
The utility model relates to technical field of engines, especially relates to a kind of motor and uses valve tappet.
Background technique
In quartastroke engine, valve tappet belongs to a strength member in the valve mechanism, and the main effect of tappet is that the lift variation that camshaft rotates is passed to push rod, thereby promotes rocking arm opening and closing valve.The shape of tappet is different, internal structure is different, the selection of material, heat treatment mode not simultaneously, with the quality that directly influences whole valve mechanism, and then directly have influence on working life of whole motor.Steyr Engine Series valve tappet for example; Adopted external import in the past, but external import there are a lot of inconvenience: the one, the supply of material is inconvenient, and the 2nd, the bad coordination of quality problems; The 3rd, cost an arm and a leg etc., we have developed this valve tappet and have improved deficiency place in the past for this reason.
Summary of the invention
The purpose of the utility model is to overcome the shortcoming that exists in the existing technology; Provide that a kind of wear resistance is good, long service life, motor with low cost use valve tappet; The technological scheme that adopts is: a kind of motor is used valve tappet, it is characterized in that: said valve tappet comprises the sky boring, and the top of said empty boring is cylindrical hole; The lower end of said cylindrical hole is smooth to be connected with approximate cone shape hole, and the bottom of approximate cone shape hole has oil duct to be communicated with oil-through hole.
The technical characteristics of the utility model also has: the bottom surface of said approximate cone shape hole is the part of sphere.
The technical characteristics of the utility model also has: said motor has groove with the lower outside of valve tappet.
The technical characteristics of the utility model also has: said valve tappet is a low-carbon alloy steel, and heat treatment is carburizing and quenching.
The technical characteristics of the utility model also has: said valve tappet is a chilled cast iron.
The technical characteristics of the utility model also has: said valve tappet is a high alloy steel, and reprocessing adds the liquid nitrogenize for modulation.
The technical characteristics of the utility model also has: said valve tappet is processed by cold-extrusion technology.
The technical characteristics of the utility model also has: the bottom of said valve tappet is welded with hard metal tip.
The beneficial effect of the utility model is: this valve tappet has designed the oil duct that is interconnected with the outside, has guaranteed lubricated needs; The bottom surface of approximate cone shape hole is the part of sphere, has guaranteed that valve tappet contacts with the good of push rod; The selection of special material and heat treatment mode has guaranteed the wear resistance and the working life of tappet.
Description of drawings
Accompanying drawing 1 is the utility model embodiment one structural representation, and accompanying drawing 2 is the utility model embodiment two structural representations, wherein, the 1st, cylinder, the 2nd, sky boring, the 3rd, oil-through hole, the 4th, groove, the 5th, hard metal tip, the 6th, oil duct.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the utility model is described.The top of this valve tappet is sky boring 2, and the structure of empty boring 2 has comprised three parts: top is cylindrical hole, and what be connected with cylindrical hole is approximate cone shape hole, with approximate cone shape hole be connected, be positioned at sky boring 2 bottom be the bottom surface, this bottom surface is the part of sphere.On the bottom surface, also have oil duct 6, this oil duct 6 is communicated with oil-through hole 3, and oil-through hole 3 partly is communicated with outside fuel feeding.Lower outside side at valve tappet has groove 4.
When reality is used; This valve tappet has two kinds of structural types; A kind of is the monolithic construction shown in the embodiment one, and the assurance of this kind well-formed quality is that the common application of material chosen and heat treatment mode, another kind are the split-type structurals shown in the embodiment two; This kind structure is welded with hard metal tip 5 in order to guarantee wear resistance in the bottom of valve tappet.
Valve tappet can adopt following material different and processing mode among the embodiment one:
1) be low-carbon alloy steel, heat treatment is carburizing and quenching.
2) valve tappet is a chilled cast iron.
3) valve tappet is a high alloy steel, and reprocessing adds the liquid nitrogenize for modulation.
Valve tappet can be processed by cold-extrusion technology among the embodiment two, at the bottom of valve tappet welding hard metal tip.
Certainly; Above-mentioned explanation is not the restriction to the utility model; The utility model also be not limited only to above-mentioned for example, variation, remodeling, interpolation or replacement that those skilled in the art are made in the essential scope of the utility model also belong to the protection domain of the utility model.
Claims (8)
1. a motor is used valve tappet, it is characterized in that: said valve tappet comprises the sky boring, and the top of said empty boring is cylindrical hole, and the lower end of said cylindrical hole is smooth to be connected with approximate cone shape hole, and the bottom of approximate cone shape hole has oil duct to be communicated with oil-through hole.
2. use valve tappet according to the described motor of claim 1, it is characterized in that: the bottom surface of said approximate cone shape hole is the part of sphere.
3. use valve tappet according to the described motor of claim 1, it is characterized in that: said motor has groove with the lower outside of valve tappet.
4. use valve tappet according to claim 1 or 2 described motors, it is characterized in that: said valve tappet is a low-carbon alloy steel, and heat treatment is carburizing and quenching.
5. use valve tappet according to claim 1 or 2 described motors, it is characterized in that: said valve tappet is a chilled cast iron.
6. use valve tappet according to claim 1 or 2 described motors, it is characterized in that: said valve tappet is a high alloy steel, and reprocessing adds the liquid nitrogenize for modulation.
7. use valve tappet according to claim 1 or 2 described motors, it is characterized in that: said valve tappet is processed by cold-extrusion technology.
8. use valve tappet according to the described motor of claim 7, it is characterized in that: the bottom of said valve tappet is welded with hard metal tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200104952U CN202381132U (en) | 2012-01-11 | 2012-01-11 | Valve tappet for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200104952U CN202381132U (en) | 2012-01-11 | 2012-01-11 | Valve tappet for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381132U true CN202381132U (en) | 2012-08-15 |
Family
ID=46629645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200104952U Expired - Fee Related CN202381132U (en) | 2012-01-11 | 2012-01-11 | Valve tappet for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236392A (en) * | 2021-05-31 | 2021-08-10 | 河北华北柴油机有限责任公司 | High-wear-resistance composite tappet for water-cooled diesel engine |
-
2012
- 2012-01-11 CN CN2012200104952U patent/CN202381132U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236392A (en) * | 2021-05-31 | 2021-08-10 | 河北华北柴油机有限责任公司 | High-wear-resistance composite tappet for water-cooled diesel engine |
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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: 20120815 Termination date: 20150111 |
|
| EXPY | Termination of patent right or utility model |