CN102979872A - Crankshaft front-end output structure for internal combustion engine - Google Patents
Crankshaft front-end output structure for internal combustion engine Download PDFInfo
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- CN102979872A CN102979872A CN2012104970559A CN201210497055A CN102979872A CN 102979872 A CN102979872 A CN 102979872A CN 2012104970559 A CN2012104970559 A CN 2012104970559A CN 201210497055 A CN201210497055 A CN 201210497055A CN 102979872 A CN102979872 A CN 102979872A
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- crankshaft
- master gear
- combustion engine
- internal combustion
- bent axle
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Abstract
The invention relates to a crankshaft front-end output structure for an internal combustion engine. The crankshaft front-end output structure comprises a crankshaft, a main gear and a crankshaft belt pulley, and is characterized in that a first positioning pin is arranged between the main gear and the crankshaft; a second positioning pin is arranged between the main gear and the crankshaft belt pulley; and the main gear and the crankshaft belt pulley are fixedly connected with the crankshaft through a plurality of bolts which are circumferentially and uniformly distributed. The crankshaft, the main gear and the crankshaft belt pulley are fixedly connected through the two positioning pins and the bolts to form the crankshaft front-end output structure. According to the crankshaft front-end output structure, the axial force of the bolts is converted into torque which can be output by the crankshaft, so that the output torque of the front end of the crankshaft is greatly improved; and in addition, compared with the conventional structure, the output structure has the characteristics of simplicity and convenience for assembly.
Description
Technical field
The present invention relates to technical field of internal combustion engines, particularly the front end of crankshaft of internal combustion engine export structure.
Background technique
In technical field of internal combustion engines, the output of the front end and back end moment of internal-combustion engine is finished by bent axle.And how to increase the output torque of bent axle front end and back end, thereby the increasing combustion engine moment of torsion is the problem of the permanent research of internal-combustion engine industry.At present, crankshaft front end output is owing to structural limitations, and the connection of being connected with master gear adopts key or the structure of interference fit to realize usually, but obvious dangerouse cross-section can appear in the connection of key, the interference fit difficulty, and cost is high.In addition, above-mentioned Placement has limited the output torque of crankshaft front end.
Summary of the invention
The present invention provides a kind of front end of crankshaft of internal combustion engine export structure for solving the technical problem that exists in the known technology, and this export structure has simple in structure, easy to assembly, and the large characteristics of output torque.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is:
The front end of crankshaft of internal combustion engine export structure, comprise bent axle, master gear and crank pulley, it is characterized in that: be provided with the first locating stud between described master gear and the bent axle, be provided with the second locating stud between described master gear and the crank pulley, described master gear is fixedly connected with bent axle by circumferential several the uniform bolts in edge with crank pulley.
The technological scheme that the present invention can also take is:
Described the second locating stud is located at master gear and crank pulley central alignment position.
Be provided with the positioning spigot that matches between described bent axle and the master gear, described positioning spigot is located at both central alignment positions.
Advantage and good effect that the present invention has are:
The present invention is fixed together bent axle, master gear and crank pulley by two locating studs and several bolts, forms the crankshaft front end export structure.This crankshaft front end export structure changes into the exportable moment of torsion of bent axle with the axial force of bolt, thereby has greatly improved the output torque of crankshaft front end; In addition, this export structure has characteristics simple in structure, easy to assembly than existing structure.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1, bent axle; 1-1, projection; 2, master gear; 2-1, groove; 3, crank pulley; 4, the first locating stud; 5, the second locating stud; 6, bolt.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1, the front end of crankshaft of internal combustion engine export structure comprises bent axle 1, master gear 2 and crank pulley 3.Be provided with the first locating stud 4 between described master gear and the bent axle, be provided with the second locating stud 5 between described master gear and the crank pulley, described master gear is fixedly connected with bent axle by circumferential several the uniform bolts 6 in edge with crank pulley.Concrete, bolt is locked in the tapped hole on the bent axle after passing bolt hole on master gear and the crank pulley.Above-mentioned the first bearing pin is used for guaranteeing the accuracy of master gear timing position, and this locating stud is located at the non-central location of master gear and bent axle.
In the technique scheme: in the situation that does not hinder bolt to be connected and fixed, for the axial runout precision that guarantees crank pulley and the stability of connection, the position of described the second locating stud is located at master gear and crank pulley central alignment position.In order to guarantee that master gear beats with respect to the flank of tooth of crankshaft center, further be provided with the positioning spigot that matches between described bent axle and the master gear, described positioning spigot is located at both central alignment positions.Concrete, protruding 1-1 can be set at the end face of bent axle, the groove 2-1 that matches the corresponding end face setting of master gear.
The above only is the better example of executing of the present invention, is not to limit practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all fall into technical scope of the present invention.
Claims (3)
1. front end of crankshaft of internal combustion engine export structure, comprise bent axle, master gear and crank pulley, it is characterized in that: be provided with the first locating stud between described master gear and the bent axle, be provided with the second locating stud between described master gear and the crank pulley, described master gear is fixedly connected with bent axle by circumferential several the uniform bolts in edge with crank pulley.
2. front end of crankshaft of internal combustion engine export structure according to claim 1, it is characterized in that: described the second locating stud is located at master gear and crank pulley central position.
3. front end of crankshaft of internal combustion engine export structure according to claim 1 and 2 is characterized in that: be provided with the positioning spigot that matches between described bent axle and the master gear, described positioning spigot is located at both central alignment positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210497055.9A CN102979872B (en) | 2012-11-27 | 2012-11-27 | Crankshaft front-end output structure for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210497055.9A CN102979872B (en) | 2012-11-27 | 2012-11-27 | Crankshaft front-end output structure for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102979872A true CN102979872A (en) | 2013-03-20 |
| CN102979872B CN102979872B (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210497055.9A Active CN102979872B (en) | 2012-11-27 | 2012-11-27 | Crankshaft front-end output structure for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102979872B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57184014A (en) * | 1981-05-09 | 1982-11-12 | Meidensha Electric Mfg Co Ltd | Short material aligning apparatus |
| WO2009109683A1 (en) * | 2008-03-03 | 2009-09-11 | Jaime Torrejon Solano | Propulsion system with self-generated power |
| CN201352218Y (en) * | 2008-12-24 | 2009-11-25 | 天津雷沃动力股份有限公司 | Rotate speed signal extraction device of engine |
| CN202280514U (en) * | 2011-10-28 | 2012-06-20 | 青岛瑞茨水泵有限公司 | Combined motorcycle crank shaft output shaft and water pump connecting device |
| CN102734339A (en) * | 2012-06-27 | 2012-10-17 | 无锡开普动力有限公司 | Crankshaft output mechanism |
-
2012
- 2012-11-27 CN CN201210497055.9A patent/CN102979872B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57184014A (en) * | 1981-05-09 | 1982-11-12 | Meidensha Electric Mfg Co Ltd | Short material aligning apparatus |
| WO2009109683A1 (en) * | 2008-03-03 | 2009-09-11 | Jaime Torrejon Solano | Propulsion system with self-generated power |
| CN201352218Y (en) * | 2008-12-24 | 2009-11-25 | 天津雷沃动力股份有限公司 | Rotate speed signal extraction device of engine |
| CN202280514U (en) * | 2011-10-28 | 2012-06-20 | 青岛瑞茨水泵有限公司 | Combined motorcycle crank shaft output shaft and water pump connecting device |
| CN102734339A (en) * | 2012-06-27 | 2012-10-17 | 无锡开普动力有限公司 | Crankshaft output mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102979872B (en) | 2015-08-19 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 300402 Beichen science and Technology Park, Beichen District, high tech Avenue, No. 77, No. Patentee after: Tianjin LOVOL Engine Co. Ltd. Address before: 300402 Beichen science and Technology Park, Beichen District, high tech Avenue, No. 77, No. Patentee before: Tianjin Lovol Engines Co., Ltd. |