CN105114527A - Flywheel component for extracting revolution speed signal of engine - Google Patents
Flywheel component for extracting revolution speed signal of engine Download PDFInfo
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- CN105114527A CN105114527A CN201510537279.1A CN201510537279A CN105114527A CN 105114527 A CN105114527 A CN 105114527A CN 201510537279 A CN201510537279 A CN 201510537279A CN 105114527 A CN105114527 A CN 105114527A
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- flywheel
- engine
- revolution speed
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- extracting
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Abstract
The invention relates to a flywheel component for extracting revolution speed signals of an engine. The flywheel component comprises a flywheel shell, a revolution speed sensor installed on the flywheel shell and a flywheel installed on a bent axle inside the flywheel shell, a tooth ring is arranged on the flywheel, and the flywheel component is characterized in that U-shaped teeth are evenly distributed at a six-degree interval within the 360-degree range along the circumference of the flywheel at the inner side of the tooth ring of the flywheel, meanwhile, two missing teeth used for judging top dead centers on the engine are arranged within the 18-degree range, the revolution speed sensor is installed at the position which is 132 degrees distant from the position of one of the missing teeth in the revolution direction of the engine, and then the engine is located at one of the top dead centers on the engine. By the adoption of the technical scheme, the structure of an engine crankshaft does not need to be modified, signal disc components or parts do not need to be added, it only needs to machine the signal teeth on the flywheel, and then signals can be identified and transmitted. The component is stable, reliable, simple in structure and convenient to assemble, disassemble and debug.
Description
Technical field
The present invention relates to the crankshaft-flywheel technical group field of internal-combustion engine, particularly the flywheel assembly that extracts of a kind of engine rotational speed signal.
Background technique
Along with the structure of electrical control system for engine and the day by day complicated of control strategy, modern electronic controlled diesel, general is all that the engine rotational speed signal of automatical control system is passed to ECU, in order to the transient position of real-time judge bent axle and camshaft, determine igniting, the timing of spraying and pulsewidth needs to meet ECU.Along with to duty of engine performance, reliability, safeguard the requirement that convenience is more and more higher, seek a kind of reliable and stable speed of crankshaft output unit very necessary.
Flywheel is cast iron or a steel disc with suitable large rotating inertia, is fixed by bolts on the flange of crankshaft rear end.Because flywheel has very large rotary inertia, the energy storage that bent axle accelerates can be got up during motor working stroke, and in several strokes beyond working stroke, namely when crankshaft deceleration, the fault offset of storage out, thus speed of crankshaft is made can to keep even.
Summary of the invention
The present invention provides that a kind of structure is simple, easy installation and removal for solving in known technology the technical problem that exists, be convenient to safeguard, do not need to increase extra signal panel simultaneously, compact structure, the flywheel assembly that the engine rotational speed signal reducing amount of parts extracts.
The technological scheme that the present invention takes for the technical problem existed in solution known technology is:
The flywheel assembly that a kind of engine rotational speed signal extracts, the flywheel comprising flywheel casing, the speed probe be arranged on flywheel casing, bent axle in flywheel casing are installed, described flywheel is provided with gear ring, it is characterized in that: in the inner side of flywheel upper ring gear along within the scope of periphery of flywheel 360 °, each 6 ° uniform one U-shaped teeth, be provided with within the scope of 18 ° simultaneously and be provided with two for judging the hypodontia of engine tope center, install speed probe from edentulous site along hand engine rotation 132 ° of positions, now motor is in a cylinder top dead center.
The advantage that the present invention has and good effect are: after have employed technique scheme, do not need to carry out structure modify to engine crankshaft, do not need additionally to increase signal panel component, are only processing signal teeth on flywheel, can realize identification and the transmission of signal.This assembly is stable, reliable, and structure is simple, is convenient to dismounting and debugging.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is flywheel structure schematic diagram.
In figure: 1, flywheel casing; 2, speed probe; 3, flywheel; 3-1, gear ring; 3-2, U-shaped tooth; 3-3, hypodontia.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, the flywheel assembly that a kind of engine rotational speed signal extracts, the flywheel 3 comprising flywheel casing 1, be arranged on the speed probe 2 on flywheel casing, the bent axle in flywheel casing is installed, described flywheel 3 is provided with gear ring 3-1, in the inner side of flywheel upper ring gear along within the scope of periphery of flywheel 360 °, each 6 ° uniform one U-shaped tooth 3-2, be provided with within the scope of 18 ° simultaneously and be provided with two for judging the hypodontia 3-3 of engine tope center, install speed probe 2 from edentulous site along hand engine rotation 132 ° of positions, now motor is in a cylinder top dead center.The present invention's the same with other motors as starting electrical machinery gears meshing.This modular construction is compact, reasonable in design.
Operating principle of the present invention is:
In technique scheme: when not increasing supernumerary structure, the U-shaped tooth of processing uniform on flywheel, flywheel and bent axle have identical rotating speed, when engine crankshaft rotates, the crankshaft sensor be arranged on flywheel casing passes through the U-shaped tooth of pickup and hypodontia quantity, judges speed of crankshaft, passes to ECU, in order to real-time judge bent axle transient position, determine igniting, the timing of spraying and pulsewidth needs to meet ECU.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (1)
1. the flywheel assembly of an engine rotational speed signal extraction, the flywheel comprising flywheel casing, the speed probe be arranged on flywheel casing, bent axle in flywheel casing are installed, described flywheel is provided with gear ring, it is characterized in that: in the inner side of flywheel upper ring gear along within the scope of periphery of flywheel 360 °, each 6 ° uniform one U-shaped teeth, be provided with within the scope of 18 ° simultaneously and be provided with two for judging the hypodontia of engine tope center, install speed probe from edentulous site along hand engine rotation 132 ° of positions, now motor is in a cylinder top dead center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510537279.1A CN105114527A (en) | 2015-08-27 | 2015-08-27 | Flywheel component for extracting revolution speed signal of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510537279.1A CN105114527A (en) | 2015-08-27 | 2015-08-27 | Flywheel component for extracting revolution speed signal of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114527A true CN105114527A (en) | 2015-12-02 |
Family
ID=54662583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510537279.1A Pending CN105114527A (en) | 2015-08-27 | 2015-08-27 | Flywheel component for extracting revolution speed signal of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114527A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3743233B2 (en) * | 1999-12-03 | 2006-02-08 | スズキ株式会社 | Outboard flywheel structure |
| CN201025216Y (en) * | 2007-04-20 | 2008-02-20 | 李红霆 | An engine flywheel |
| CN202031674U (en) * | 2011-04-23 | 2011-11-09 | 广东德力柴油机有限公司 | Fuel pump structure |
| CN202579806U (en) * | 2012-05-04 | 2012-12-05 | 安徽华菱汽车有限公司 | Automobile and flywheel assembly thereof |
| CN204572909U (en) * | 2015-01-15 | 2015-08-19 | 东风朝阳朝柴动力有限公司 | With the engine flywheel of signal groove |
| CN205036781U (en) * | 2015-08-27 | 2016-02-17 | 天津雷沃动力有限公司 | Flywheel assembly that engine speed signal drawed |
-
2015
- 2015-08-27 CN CN201510537279.1A patent/CN105114527A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3743233B2 (en) * | 1999-12-03 | 2006-02-08 | スズキ株式会社 | Outboard flywheel structure |
| CN201025216Y (en) * | 2007-04-20 | 2008-02-20 | 李红霆 | An engine flywheel |
| CN202031674U (en) * | 2011-04-23 | 2011-11-09 | 广东德力柴油机有限公司 | Fuel pump structure |
| CN202579806U (en) * | 2012-05-04 | 2012-12-05 | 安徽华菱汽车有限公司 | Automobile and flywheel assembly thereof |
| CN204572909U (en) * | 2015-01-15 | 2015-08-19 | 东风朝阳朝柴动力有限公司 | With the engine flywheel of signal groove |
| CN205036781U (en) * | 2015-08-27 | 2016-02-17 | 天津雷沃动力有限公司 | Flywheel assembly that engine speed signal drawed |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |