CN202832682U - Diesel engine cam shaft - Google Patents
Diesel engine cam shaft Download PDFInfo
- Publication number
- CN202832682U CN202832682U CN 201220231089 CN201220231089U CN202832682U CN 202832682 U CN202832682 U CN 202832682U CN 201220231089 CN201220231089 CN 201220231089 CN 201220231089 U CN201220231089 U CN 201220231089U CN 202832682 U CN202832682 U CN 202832682U
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- Prior art keywords
- cam shaft
- cam
- diesel engine
- section
- adpting flange
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- 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.)
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Abstract
The utility model discloses a diesel engine cam shaft. The diesel engine cam shaft is formed by assembling a plurality of cam shaft sections. Each cam shaft section comprises a front connecting flange, an exhaust cam shaft, an air feeding cam shaft, and a back connecting flange. Each two adjacent cam shaft is connected with the back connecting flange of the other cam shaft section together through the front connecting flange of one cam shaft section. Due to the fact the diesel engine cam shaft applies an assembling-type cam shaft structure with one cylinder one cam shaft section, rigidity of the cam shaft section can be effectively enhanced. The cam shaft sections which are short in same length in each section are easy to manufacture, lower production cost, and guarantee assembling precision by adopting pin location. In addition, the diesel engine cam shaft is formed by integrating an air distribution cam and an oil ejection cam, thereby enabling arrangement of an engine structure to be impact and reasonable.
Description
Technical field
The utility model relates to the diesel engine field, particularly a kind of cam shaft for diesel engine.
Background technique
Camshaft is parts in the piston engine.Its effect is the opening and closing action of control valve.Although the rotating speed of camshaft is half (rotating speed at two stroke engine convexity wheel shaft is identical with bent axle) of bent axle in four stroke engine, but its rotating speed is still very high usually, and need to bear very large moment of torsion, therefore very high in the requirement aspect intensity and the support to camshaft in the design.Existing camshaft adopts integral design, and the main body of camshaft is a cylindrical barred body identical with cylinder block length, and the above is processed with several cams, is used for driving valve.
Owing to adopting the camshaft main body of integral design identical with cylinder block length, cause axial length larger, and the rotating speed of camshaft is very high, need to bear very large moment of torsion, require very high for the camshaft rigidity like this, so that the processing technology of this one-piece camshaft is complicated, cost is high, and work efficiency is low.In addition, the general distribution cam axle of conventional diesel engine and injection cam axle are arranged to respectively two cams, so that engine arrangement is compact not, but also can increase cost.
The model utility content
The technical problem that the utility model solves provides a kind of sectional formula design, the cam shaft for diesel engine that rigidity is strong.
For achieving the above object, provide a kind of cam shaft for diesel engine according to the utility model, assembled by a plurality of cam shaft parts, each cam shaft part comprises respectively: front adpting flange, exhaust cam, intake cam and rear adpting flange, adjacent two cam shaft parts link together by the front adpting flange of one of them and another rear adpting flange.
Further, adjacent two cam shaft parts are bolted when connecting, and adopt the pin location.
Further, each cam shaft part also comprises: be arranged on the injection cam between described front adpting flange and the exhaust cam.
According to the technical solution of the utility model, because this cam shaft for diesel engine adopts the assembling camshaft structure of one section cam shaft part of a cylinder, can effectively strengthen the camshaft rigidity; Every section is the shorter cam shaft part of same length, and easy processing cuts down finished cost, and adopts pin to locate to guarantee assembly precision.In addition, this cam shaft for diesel engine is integrated valve cam and injection cam makes engine structure characteristics of compact layout, rationally.
Description of drawings
Fig. 1 is the perspective view according to cam shaft for diesel engine of the present utility model;
Fig. 2 is the main TV structure schematic diagram according to cam shaft for diesel engine of the present utility model;
Fig. 3 is the partial structurtes schematic diagram according to cam shaft for diesel engine of the present utility model.
Reference character:
Adpting flange before the 1-cam shaft part, 11-, 12-injection cam, 13-exhaust cam, 14-intake cam, adpting flange behind the 15-, 16-bolt, 17-mark.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.
Referring to Fig. 1 and Fig. 2, this cam shaft for diesel engine is assembled by a plurality of cam shaft parts 1, and every section cam shaft part 1 corresponding cylinder is comprised successively by left-to-right: front adpting flange 11, injection cam 12, exhaust cam 13, intake cam 14 and rear adpting flange 15.Wherein, injection cam 12 is used for the oil spout of control Injection Pump; Exhaust cam 13 and intake cam 14 are used for the opening and closing of control inlet and outlet door; Front adpting flange 11 is by 12 of circumferentially uniform bolt 16() with the rear adpting flange 15 of another section cam shaft part 1 on stressed joint; In addition, spaced apartly on rear adpting flange 15 be provided with three pin-and-hole (not shown)s, rear adpting flange 15 side print corresponding with these three pin-and-holes have " 1 ", " 2 ", " 3 " three mark 17(as shown in Figure 3), during adjacent like this two cam shaft parts, 1 assembling, pin on one of them cam shaft part 1 rear adpting flange 15 is by inserting on another cam shaft part 1 front adpting flange 11 one in three pin-and-holes with reference to three marks 17, angle when determining 1 assembling of two cam shaft parts with this, this pin locates to guarantee assembly precision, has guaranteed that namely all the same cam shaft parts have just guaranteed distribution and the oil spout phase place of whole camshaft by the simple rotation angle.
Like this, a plurality of cam shaft parts 1 are assembled into a complete cam shaft for diesel engine, adopt the structure of one section cam shaft part of a cylinder, and every section cam shaft part is integrated distribution and injection cam makes engine structure compact.
Because this cam shaft for diesel engine adopts the assembling camshaft structure of one section cam shaft part of a cylinder, can effectively strengthen the camshaft rigidity; Every section is the shorter cam shaft part of same length, and easy processing cuts down finished cost, and adopts pin to locate to guarantee assembly precision.In addition, this cam shaft for diesel engine is integrated valve cam and injection cam makes engine structure characteristics of compact layout, rationally.
Above disclosed only be a specific embodiment of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (3)
1. cam shaft for diesel engine, it is characterized in that, assembled by a plurality of cam shaft parts, each described cam shaft part comprises respectively: front adpting flange, exhaust cam, intake cam and rear adpting flange, adjacent two described cam shaft parts link together by the front adpting flange of one of them and another rear adpting flange.
2. cam shaft for diesel engine according to claim 1 is characterized in that, described adjacent two cam shaft parts are bolted when connecting, and adopts the pin location.
According to claim 1 and 2 in each described cam shaft for diesel engine, it is characterized in that, described each cam shaft part also comprises: be arranged on the injection cam between described front adpting flange and the exhaust cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231089 CN202832682U (en) | 2012-05-22 | 2012-05-22 | Diesel engine cam shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231089 CN202832682U (en) | 2012-05-22 | 2012-05-22 | Diesel engine cam shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832682U true CN202832682U (en) | 2013-03-27 |
Family
ID=47944414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220231089 Expired - Lifetime CN202832682U (en) | 2012-05-22 | 2012-05-22 | Diesel engine cam shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832682U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993958A (en) * | 2014-05-30 | 2014-08-20 | 南车玉柴四川发动机股份有限公司 | Energy-saving and environment-friendly type high-power locomotive diesel engine |
| CN108661738A (en) * | 2017-04-01 | 2018-10-16 | 中国船舶重工集团公司第七研究所 | The method of sectional camshaft and assembly sectional camshaft |
| CN110388242A (en) * | 2019-07-12 | 2019-10-29 | 长沙光华航空科技有限公司 | A kind of engine |
| CN111033030A (en) * | 2017-08-17 | 2020-04-17 | 瓦锡兰芬兰有限公司 | Camshaft assembly for an internal combustion piston engine and method for converting an internal combustion piston engine to operate in at least two operating modes |
| CN113601119A (en) * | 2021-08-13 | 2021-11-05 | 陕西柴油机重工有限公司 | Machining method for high-power diesel engine camshaft |
| CN114102090A (en) * | 2021-12-16 | 2022-03-01 | 陕西柴油机重工有限公司 | Sectional assembling device and method for central camshaft of marine diesel engine |
-
2012
- 2012-05-22 CN CN 201220231089 patent/CN202832682U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993958A (en) * | 2014-05-30 | 2014-08-20 | 南车玉柴四川发动机股份有限公司 | Energy-saving and environment-friendly type high-power locomotive diesel engine |
| CN108661738A (en) * | 2017-04-01 | 2018-10-16 | 中国船舶重工集团公司第七研究所 | The method of sectional camshaft and assembly sectional camshaft |
| CN111033030A (en) * | 2017-08-17 | 2020-04-17 | 瓦锡兰芬兰有限公司 | Camshaft assembly for an internal combustion piston engine and method for converting an internal combustion piston engine to operate in at least two operating modes |
| CN111033030B (en) * | 2017-08-17 | 2022-03-08 | 瓦锡兰芬兰有限公司 | Camshaft assembly for an internal combustion piston engine and method for converting an internal combustion piston engine to operate in at least two operating modes |
| CN110388242A (en) * | 2019-07-12 | 2019-10-29 | 长沙光华航空科技有限公司 | A kind of engine |
| CN110388242B (en) * | 2019-07-12 | 2023-09-15 | 长沙光华航空科技有限公司 | Engine |
| CN113601119A (en) * | 2021-08-13 | 2021-11-05 | 陕西柴油机重工有限公司 | Machining method for high-power diesel engine camshaft |
| CN114102090A (en) * | 2021-12-16 | 2022-03-01 | 陕西柴油机重工有限公司 | Sectional assembling device and method for central camshaft of marine diesel engine |
| CN114102090B (en) * | 2021-12-16 | 2023-05-23 | 陕西柴油机重工有限公司 | Sectional assembly device and method for central camshaft of marine diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |