CN105626771A - Variable balance shaft system of engine - Google Patents
Variable balance shaft system of engine Download PDFInfo
- Publication number
- CN105626771A CN105626771A CN201510741365.4A CN201510741365A CN105626771A CN 105626771 A CN105626771 A CN 105626771A CN 201510741365 A CN201510741365 A CN 201510741365A CN 105626771 A CN105626771 A CN 105626771A
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- China
- Prior art keywords
- trunnion shaft
- engine
- driving wheel
- crankshaft
- balance shaft
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Abstract
The invention discloses a variable balance shaft system of an engine. The variable balance shaft system of the engine is reasonable in structure and can make a judgment to running conditions and vibration conditions, thus, balance shafts are reasonably used, the total frictional work of the engine can be lowered, and fuel economy is improved. The variable balance shaft system of the engine comprises an engine crankshaft, a first balance shaft, a synchronous-separation adjuster and a balance shaft driving wheel, wherein the engine crankshaft is provided with a crankshaft driving wheel and a plurality of main balance blocks, the first balance shaft is provided with a plurality of first auxiliary balance blocks, and the synchronous-separation adjuster is located between the balance shaft driving wheel and the first balance shaft; the crankshaft driving wheel provides rotation power for the balance shaft driving wheel, the engine crankshaft is provided with a crankshaft rotating speed sensor, and the crankshaft rotating speed sensor and the synchronous-separation adjuster are both connected with an automobile ECU.
Description
Technical field
The invention belongs to technical field of automobile engine, particularly relate to a kind of engine variable balance shaft system.
Background technology
When electromotor place in working order time, the movement velocity of piston is very fast, and speed is very uneven. When piston is positioned at upper and lower dead-centre position, its speed is zero, but the speed in upper and lower stop centre position then reaches the highest. Owing to piston does high-speed straight-line motion repeatedly in cylinder, bigger inertia force therefore will necessarily be produced on piston, piston pin and connecting rod. Although the counterweight on connecting rod can balance these inertia force effectively, but only some moving-mass participates in rectilinear motion, and another part take part in rotation. Thus except upper and lower dead-centre position, other inertia force can not be fully achieved poised state, electromotor now just creates vibration. In order to eliminate this vibration, designer have employed a lot of method, for instance adopts the piston of lightweight to reduce the quality of movement parts, improve the rigidity of bent axle, " V " type layout electromotor adopting 60 degree of angles etc. Increase trunnion shaft be also these ways one of them, briefly trunnion shaft be exactly in fact one equipped with eccentric weight and with crankshaft-synchronous rotate axle, utilize reversal of vibrations power produced by eccentric weight, make electromotor obtain good counterbalance effect, reduce engine luggine. But the use of trunnion shaft, add again the frictional work of electromotor.
China Patent Publication No. CN202851618U, discloses a kind of engine balance shaft mechanism, and it includes: trunnion shaft room, and itself and engine body are fastenedly connected; Idle gear assembly, including: idle gear, idle gear axle sleeve, idle gear wearing plate, idle gear baffle plate and idle gear fastening bolt, idle gear axle sleeve is arranged on trunnion shaft room, and is fastened on trunnion shaft room by the first screw and idle gear wearing plate; Idle gear is arranged on trunnion shaft room by idle gear axle sleeve, and idle gear is positioned at idle gear shaft by idle gear baffle plate and the first alignment pin and puts by idle gear fastening bolt; Balance shaft gear assembly, it is divided into two groups, each group balance shaft gear assembly includes: trunnion shaft, balance shaft gear, axle sleeve, plate washer and trunnion shaft thrust plate, trunnion shaft thrust plate is fixed on trunnion shaft room, and balance shaft gear is compressed by balance shaft gear by balance shaft gear fastening bolt and plate washer. This mechanism makes the noise of electromotor and vibration decline substantially, and mounting or dismounting are convenient. This utility model is disadvantageous in that, the balance shaft system moment works, and the total frictional work of electromotor is relatively big, fuel consumption is relatively large.
Summary of the invention
The present invention is to overcome deficiency of the prior art, provide a kind of rational in infrastructure, can judge for travel conditions, vibration state, thus Appropriate application trunnion shaft, the total frictional work of electromotor can be reduced, improve the engine variable balance shaft system of fuel economy.
To achieve these goals, the present invention is by the following technical solutions:
A kind of engine variable balance shaft system, including engine crankshaft, trunnion shaft one, separated in synchronization actuator, trunnion shaft driving wheel, described engine crankshaft is provided with bent axle driving wheel, described engine crankshaft is provided with some main balance weights, described trunnion shaft one is provided with some auxiliary balance weights one, described separated in synchronization actuator is between trunnion shaft driving wheel and trunnion shaft one, the rotational power of described trunnion shaft driving wheel is from bent axle driving wheel, described engine crankshaft is provided with crankshaft rotational speed sensor, described crankshaft rotational speed sensor, separated in synchronization actuator is all connected with automobile ECU.
As preferably, described bent axle driving wheel imparts power to trunnion shaft driving wheel by main trunnion shaft driving mechanism, and described main trunnion shaft driving mechanism is chain wheel driving mechanism or gear drive.
As preferably, also include trunnion shaft two, described trunnion shaft two is provided with some auxiliary balance weights two, the rotational power of described trunnion shaft two is from trunnion shaft one, described trunnion shaft one drives trunnion shaft two by trunnion shaft driving mechanism, and described trunnion shaft driving mechanism is chain wheel driving mechanism or gear drive.
The invention has the beneficial effects as follows: when electromotor uses trunnion shaft DeGrain, trunnion shaft separates with bent axle, and trunnion shaft stops operating, and reduces engine friction horsepower, improves fuel economy; When electromotor needs trunnion shaft to work, trunnion shaft works, can effective vibration damping.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: engine crankshaft 1, trunnion shaft 1, separated in synchronization actuator 3, trunnion shaft driving wheel 4, bent axle driving wheel 5, crankshaft rotational speed sensor 6, automobile ECU 7, main trunnion shaft driving mechanism 8, trunnion shaft 29.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
In embodiment as shown in Figure 1, a kind of engine variable balance shaft system, including engine crankshaft 1, trunnion shaft 1, separated in synchronization actuator 3, trunnion shaft driving wheel 4, described engine crankshaft 1 is provided with bent axle driving wheel 5, described engine crankshaft 1 is provided with some main balance weights, described trunnion shaft 1 is provided with some auxiliary balance weights one, described separated in synchronization actuator 3 is between trunnion shaft driving wheel 4 and trunnion shaft 1, the rotational power of described trunnion shaft driving wheel 4 is from bent axle driving wheel 5, described engine crankshaft 1 is provided with crankshaft rotational speed sensor 6, described crankshaft rotational speed sensor 6, separated in synchronization actuator 3 is all connected with automobile ECU 7.
Described bent axle driving wheel 5 imparts power to trunnion shaft driving wheel 4 by main trunnion shaft driving mechanism 8, and described main trunnion shaft driving mechanism 8 is chain wheel driving mechanism or gear drive.
Also include trunnion shaft 29, described trunnion shaft 29 is provided with some auxiliary balance weights two, the rotational power of described trunnion shaft 29 is from trunnion shaft 1, described trunnion shaft 1 drives trunnion shaft two by trunnion shaft driving mechanism, and described trunnion shaft driving mechanism is chain wheel driving mechanism or gear drive.
Balance shaft mechanism can be divided into singly balanced axle and two kinds of structures of double balance shaft. Singly balanced axle adopts single trunnion shaft, utilizes gear transmission mode to be operated, and rotarily drives connected balancer shaft drive gear, balance shaft driven gear wheel and trunnion shaft by bent axle. Singly balanced spindle balance single order comes and goes inertia force. Double balance shaft adopts Chain conveyer mode to drive two trunnion shafves to rotate, and the rotating speed of trunnion shaft is 2 times of engine speed, it is possible to the second order of balanced engine comes and goes inertia force, thus reaching more desirably effectiveness in vibration suppression.
Whether singly balanced axle or double balance shaft mechanism, is all by chain or gear drive realization and engine crankshaft 1 synchronous axial system, but this kind of drive is all the kind of drive of secure bond, it is impossible to realize engine crankshaft 1 and separate with the transmission of trunnion shaft. Also just cannot accomplishing according to design idea, at the engine operating condition point synchronous axial system that trunnion shaft works big, and the engine operating condition point working little at trunnion shaft disconnects transmission, and namely trunnion shaft stops operating.
The purpose of the present invention, it is simply that by installing lock unit and phase regulator (separated in synchronization actuator 3) in balance shaft mechanism additional, makes balance shaft drive mechanism be capable of connecting or separating. When electromotor uses trunnion shaft to have bigger effect, trunnion shaft and bent axle are attached by lock unit, and trunnion shaft works, and reduce electromotor NVH. And when electromotor uses trunnion shaft DeGrain, trunnion shaft separates with bent axle, and trunnion shaft stops operating, reduce engine friction horsepower, improve fuel economy.
Claims (3)
1. an engine variable balance shaft system, it is characterized in that, including engine crankshaft (1), trunnion shaft one (2), separated in synchronization actuator (3), trunnion shaft driving wheel (4), described engine crankshaft (1) is provided with bent axle driving wheel (5), described engine crankshaft (1) is provided with some main balance weights, described trunnion shaft one (2) is provided with some auxiliary balance weights one, described separated in synchronization actuator (3) is between trunnion shaft driving wheel (4) and trunnion shaft one (2), the rotational power of described trunnion shaft driving wheel (4) is from bent axle driving wheel (5), described engine crankshaft (1) is provided with crankshaft rotational speed sensor (6), described crankshaft rotational speed sensor (6), separated in synchronization actuator (3) is all connected with automobile ECU (7).
2. a kind of engine variable balance shaft system according to claim 1, it is characterized in that, described bent axle driving wheel (5) imparts power to trunnion shaft driving wheel (4) by main trunnion shaft driving mechanism (8), and described main trunnion shaft driving mechanism (8) is chain wheel driving mechanism or gear drive.
3. a kind of engine variable balance shaft system according to claim 1 and 2, it is characterized in that, also include trunnion shaft two (9), described trunnion shaft two (9) is provided with some auxiliary balance weights two, the rotational power of described trunnion shaft two (9) is from trunnion shaft one (2), described trunnion shaft one (2) drives trunnion shaft two (9) by trunnion shaft driving mechanism, and described trunnion shaft driving mechanism is chain wheel driving mechanism or gear drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741365.4A CN105626771A (en) | 2015-11-04 | 2015-11-04 | Variable balance shaft system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741365.4A CN105626771A (en) | 2015-11-04 | 2015-11-04 | Variable balance shaft system of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105626771A true CN105626771A (en) | 2016-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510741365.4A Pending CN105626771A (en) | 2015-11-04 | 2015-11-04 | Variable balance shaft system of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105626771A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106846821A (en) * | 2017-02-24 | 2017-06-13 | 成都皆为科技有限公司 | A kind of full model recognition system |
| CN107869388A (en) * | 2016-09-23 | 2018-04-03 | 株式会社石川能源研究 | Engine |
| CN108533676A (en) * | 2018-04-18 | 2018-09-14 | 廖德彬 | Cluster engine for mixing electrical automobile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162081A (en) * | 1996-04-09 | 1997-10-15 | 株式会社久保田 | Engine with two-shaft balancing device |
| JPH10280973A (en) * | 1997-04-08 | 1998-10-20 | Otix:Kk | Blancer mechanism for internal combustion engine, and its driving method |
| DE102007053604A1 (en) * | 2007-11-10 | 2009-05-20 | Audi Ag | Combustion engine comprises a clutch arranged between a crankshaft and a balancer shaft for switching the balancer shaft on and off depending on the rotation of the crankshaft |
| DE102008012682A1 (en) * | 2008-03-05 | 2009-09-10 | Audi Ag | Clutch for connecting balancing shaft with crankshaft of internal-combustion engine, has annular gear that is mounted on crankshaft, and is connected with crankshaft by switching mechanics in force-fit manner |
| CN204300229U (en) * | 2014-12-11 | 2015-04-29 | 重庆宗申发动机制造有限公司 | A kind of engine balance mechanism for motorcycle |
| CN104595028A (en) * | 2013-10-31 | 2015-05-06 | 北汽福田汽车股份有限公司 | Balance shaft module for engine and engine provided with same |
-
2015
- 2015-11-04 CN CN201510741365.4A patent/CN105626771A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162081A (en) * | 1996-04-09 | 1997-10-15 | 株式会社久保田 | Engine with two-shaft balancing device |
| JPH10280973A (en) * | 1997-04-08 | 1998-10-20 | Otix:Kk | Blancer mechanism for internal combustion engine, and its driving method |
| DE102007053604A1 (en) * | 2007-11-10 | 2009-05-20 | Audi Ag | Combustion engine comprises a clutch arranged between a crankshaft and a balancer shaft for switching the balancer shaft on and off depending on the rotation of the crankshaft |
| DE102008012682A1 (en) * | 2008-03-05 | 2009-09-10 | Audi Ag | Clutch for connecting balancing shaft with crankshaft of internal-combustion engine, has annular gear that is mounted on crankshaft, and is connected with crankshaft by switching mechanics in force-fit manner |
| CN104595028A (en) * | 2013-10-31 | 2015-05-06 | 北汽福田汽车股份有限公司 | Balance shaft module for engine and engine provided with same |
| CN204300229U (en) * | 2014-12-11 | 2015-04-29 | 重庆宗申发动机制造有限公司 | A kind of engine balance mechanism for motorcycle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869388A (en) * | 2016-09-23 | 2018-04-03 | 株式会社石川能源研究 | Engine |
| CN106846821A (en) * | 2017-02-24 | 2017-06-13 | 成都皆为科技有限公司 | A kind of full model recognition system |
| CN106846821B (en) * | 2017-02-24 | 2023-09-01 | 成都皆为科技有限公司 | Full-vehicle type recognition system |
| CN108533676A (en) * | 2018-04-18 | 2018-09-14 | 廖德彬 | Cluster engine for mixing electrical automobile |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161010 Address after: Licheng District 250109 Shandong city of Ji'nan province (hi tech Zone) Chunhui Road No. 1777 Applicant after: Ji'nan Geely Auto Parts Co., Ltd. Address before: 315336 Binhai New Area, Hangzhou Bay, Zhejiang, No. two, No. 818 Road, No. Applicant before: Ningbo lucky Luo You engine component Co., Ltd Applicant before: Zhejiang Geely Luoyou Engine Co., Ltd. Applicant before: Ji'nan Geely Auto Parts Co., Ltd. Applicant before: Hunan Luoyou Engine Parts Co., Ltd. Applicant before: Ningbo Shangzhongxia Automatic Transmission Co., Ltd. Applicant before: Zhejiang Geely Holding Group Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160601 |