CN103803048B - Cross-type two-stroke diesel low speed diesel engine deceleration propelling unit - Google Patents
Cross-type two-stroke diesel low speed diesel engine deceleration propelling unit Download PDFInfo
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- CN103803048B CN103803048B CN201410053119.5A CN201410053119A CN103803048B CN 103803048 B CN103803048 B CN 103803048B CN 201410053119 A CN201410053119 A CN 201410053119A CN 103803048 B CN103803048 B CN 103803048B
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- 230000001141 propulsive effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of cross-type two-stroke diesel low speed diesel engine deceleration propelling unit, comprise cross-type two-stroke diesel low speed diesel engine (1) and screw propeller (2), it is characterized in that: the output shaft (11) of described cross-type two-stroke diesel low speed diesel engine (1) to be connected the rotating speed to reduce screw propeller (2) by train of reduction gears (3) with the tailing axle (21) of described screw propeller (2).This deceleration propelling unit overcomes the technology prejudice of those skilled in the art, to be connected with the tailing axle of screw propeller by train of reduction gears by the output shaft of cross-type two-stroke diesel low speed diesel engine and to improve propulsion coefficient with the rotating speed reducing screw propeller, replace traditional cross-type two-stroke diesel low speed diesel engine originally to reduce rotating speed with ultra-long-stroke and improve propelling effect, the two-stroke low speed machine volume and weight of same output speed and power is made to greatly reduce and alleviate like this, shake reduction in addition, and its cost of two-stroke low speed diesel engine of rotating speed is more cheap equally on year-on-year basis.
Description
Technical field
The present invention relates to a kind of cross-type two-stroke diesel low speed diesel engine deceleration propelling unit.
Background technology
Diesel engine divides according to rotating speed, can be divided into middle high speed diesel engine and low speed diesel engine.Low speed diesel engine majority is double stroke machine, and medium speed diesel engine majority is four-stroke machine, high speed diesel engine then both.High-power two-stroke low speed diesel engine is widely used on the Large ocean going vessels such as bulge carrier, oil tanker, box ship, uses as the primary mover in propelling unit.For realizing the requirement of boats and ships low power consuming, diesel engine for boats, in order to improve the propulsion coefficient of screw propeller, constantly reduces rotating speed, in addition testing surface, screw propeller its propulsion coefficient larger is higher, but screw propeller does a large prerequisite is that the rotating speed of diesel engine must by 50 ~ 60 turns.And traditional cross-type two-stroke diesel low speed diesel engine itself due to rotating speed low, traditional concept is all not thought to be needed to slow down with gear case, gear case is adopted to increase cost and energy consumption on the contrary, but screw propeller tailing axle is directly connected with diesel engine mouth, therefore diesel engine how many turns, just how many turns, screw propeller.Although some two-stroke low speed diesel engine also has selective gear case on tailing axle, but this gear case is the raising speed case installing shaft generator, for making two-stroke low speed diesel engine reach the object of 50Hz or 60Hz frequency and the change speed gear box arranged, the object arranging gear case is not to be slowed down by diesel engine output speed.This is actually a kind of technology prejudice, so-called technology prejudice refers within certain period, in certain technical field, the understanding that technical personnel is ubiquitous to certain technical matters, depart from objective fact, it guides people not go to consider the possibility of other side, hinders people to the research and development of this technical field.
Just because there is aforementioned techniques prejudice, now in order to make propeller propulsive efficiency improve, technical personnel considers the rotating speed of cross-type two-stroke diesel low speed diesel engine to decline further, but while rotating speed declines, diesel engine power also declines thereupon, therefore, can not meet the requirement of power demand.If power remains unchanged, rotating speed reduces, and only has and the stroke of diesel engine is lengthened, and such diesel engine volume is very large, and weight is very heavy, and vibrations increase, manufacture difficulty is large, cost is just very high.Concerning manufacture link, just become energy-consuming product like this, be also unfavorable for energy-conserving and environment-protective manufacture.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of for above-mentioned prior art present situation also effectively to fall slow-revving two-stroke low speed diesel engine deceleration propelling unit at the stroke without the need to lengthening original cross-type two-stroke diesel low speed diesel engine, this device can improve the propulsion coefficient of screw propeller, and its cost of two-stroke low speed diesel engine of same rotating speed is more cheap on year-on-year basis.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of two-stroke low speed diesel engine deceleration propelling unit, comprise cross-type two-stroke diesel low speed diesel engine and screw propeller, it is characterized in that: the output shaft of described cross-type two-stroke diesel low speed diesel engine to be connected the rotating speed to reduce screw propeller by train of reduction gears with the tailing axle of described screw propeller.
Above-mentioned train of reduction gears is installed in the base box of diesel engine base afterbody, the output shaft of described cross-type two-stroke diesel low speed diesel engine is as the miniature gears S. A. of described train of reduction gears, after simultaneously the output shaft of cross-type two-stroke diesel low speed diesel engine passes base box, flywheel is installed, is connected by the tailing axle of unitor with described screw propeller after the big gear wheel S. A. of described train of reduction gears passes base box.Because train of reduction gears is positioned at the base box of diesel engine base afterbody, integral structure is more indirect.
The big gear wheel S. A. of above-mentioned train of reduction gears is provided with thrust baring.
Above-mentioned train of reduction gears is arranged in casing and forms reducing gearbox, this reducing gearbox is positioned at the outside of cross-type two-stroke diesel low speed diesel engine, the output shaft of cross-type two-stroke diesel low speed diesel engine is provided with flywheel, simultaneously the output shaft of cross-type two-stroke diesel low speed diesel engine is connected with the miniature gears S. A. of train of reduction gears, is connected after the big gear wheel S. A. of described train of reduction gears passes casing by the tailing axle of unitor with described screw propeller.
The big gear wheel S. A. of above-mentioned train of reduction gears is provided with thrust baring.
Be connected by high resiliency unitor between the output shaft of above-mentioned cross-type two-stroke diesel low speed diesel engine and the miniature gears S. A. of described train of reduction gears.
Above-mentioned reducing gearbox is the reducing gearbox with clutch function.
Above-mentioned reducing gearbox is have reducing gearbox that is suitable, car-backing function.
There is in above-mentioned reducing gearbox one group of additional shaft generator of equipment gear.
Compared with prior art, the utility model has the advantage of: this deceleration propelling unit overcomes those skilled in the art and thinks the rotating speed lower technology prejudice not needing to slow down with gear case of cross-type two-stroke diesel low speed diesel engine, to be connected with the tailing axle of screw propeller by train of reduction gears by the output shaft of cross-type two-stroke diesel low speed diesel engine and to improve propulsion coefficient with the rotating speed reducing screw propeller, replace traditional cross-type two-stroke diesel low speed diesel engine originally to reduce rotating speed with ultra-long-stroke and improve propelling effect, the two-stroke low speed machine volume and weight of same output speed and power is made to greatly reduce and alleviate like this, vibrations reduce, and its cost of two-stroke low speed diesel engine of rotating speed is more cheap equally on year-on-year basis, we carry out the two-stroke low speed machine calculating same output speed and power, two-stroke low speed diesel engine with speed reduction gearing can reduce by the weight of 30%, can be country saved the cost of raw material of 30% and reduced by the industrial discharge of 30%, simultaneously, also save cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention;
Fig. 2 is the structural representation of second embodiment of the invention;
Fig. 3 is the structural representation of third embodiment of the invention;
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As shown in Figure 1, be first embodiment of the present invention.
A kind of cross-type two-stroke diesel low speed diesel engine deceleration propelling unit, comprise cross-type two-stroke diesel low speed diesel engine 1 and screw propeller 2, the output shaft 11 of cross-type two-stroke diesel low speed diesel engine 1 is connected with the tailing axle 21 of screw propeller 2 rotating speed reducing screw propeller 2 by train of reduction gears 3.
Train of reduction gears 3 in the present embodiment is installed in the base box 4 of diesel engine base afterbody, the output shaft 11 of cross-type two-stroke diesel low speed diesel engine is as the miniature gears S. A. 31 of train of reduction gears 3, after the output shaft 11 of cross-type two-stroke diesel low speed diesel engine passes base box 4 simultaneously, flywheel 5 is installed, flywheel 5 is the conventional components of cross-type two-stroke diesel low speed diesel engine, be connected with the tailing axle 21 of described screw propeller by unitor 6 after the big gear wheel S. A. 32 of train of reduction gears 3 passes base box 4, big gear wheel S. A. 32 is the output shaft of this train of reduction gears.The big gear wheel S. A. 32 of train of reduction gears is provided with thrust baring 7.
As shown in Figure 2, be second embodiment of the present invention.
Train of reduction gears 3 in the present embodiment is arranged in casing 8 and forms reducing gearbox 9, this reducing gearbox 9 is positioned at the outside of cross-type two-stroke diesel low speed diesel engine 1, the output shaft 11 of cross-type two-stroke diesel low speed diesel engine is provided with flywheel 5, the output shaft 11 of cross-type two-stroke diesel low speed diesel engine is connected with the miniature gears S. A. 31 of train of reduction gears 3 by coupler 12 simultaneously, be connected with the tailing axle 21 of screw propeller by unitor 6 after the big gear wheel S. A. 32 of train of reduction gears 3 passes casing 8, big gear wheel S. A. 32 is the output shaft of this train of reduction gears.The big gear wheel S. A. 32 of train of reduction gears is provided with thrust baring 7.
As shown in Figure 3, be the 3rd embodiment of the present invention.
The difference of the present embodiment and second embodiment is: the output shaft 11 of cross-type two-stroke diesel low speed diesel engine is connected by high resiliency unitor 10 with between the miniature gears S. A. 31 of described train of reduction gears 3.
Reducing gearbox 9 can for having reducing gearbox that is suitable, car-backing function.Reducing gearbox 9 can also for having the reducing gearbox of clutch function.One group of additional shaft generator of equipment gear can also be had in reducing gearbox 9.
This deceleration propelling unit overcomes those skilled in the art and thinks the rotating speed lower technology prejudice not needing to slow down with gear case of cross-type two-stroke diesel low speed diesel engine, to be connected with the tailing axle of screw propeller by train of reduction gears by the output shaft of cross-type two-stroke diesel low speed diesel engine and to improve propulsion coefficient with the rotating speed reducing screw propeller, replace traditional cross-type two-stroke diesel low speed diesel engine originally to reduce rotating speed with ultra-long-stroke and improve propelling effect, the two-stroke low speed machine volume and weight of same output speed and power is made to greatly reduce and alleviate like this, vibrations reduce, and its cost of two-stroke low speed diesel engine of rotating speed is more cheap equally on year-on-year basis, we calculate, the two-stroke low speed machine of same output speed and power, two-stroke low speed diesel engine with speed reduction gearing can reduce by the weight of 30%, can be country saved the cost of raw material of 30% and reduced by the industrial discharge of 30%, simultaneously, also save cost.
Claims (8)
1. a cross-type two-stroke diesel low speed diesel engine deceleration propelling unit, comprise cross-type two-stroke diesel low speed diesel engine (1) and screw propeller (2), it is characterized in that: the output shaft (11) of described cross-type two-stroke diesel low speed diesel engine (1) to be connected the rotating speed to reduce screw propeller (2) by train of reduction gears (3) with the tailing axle (21) of described screw propeller (2);
Described train of reduction gears (3) is installed in the base box (4) of diesel engine base afterbody, the output shaft (11) of described cross-type two-stroke diesel low speed diesel engine is as the miniature gears S. A. (31) of described train of reduction gears (3), be provided with flywheel (5) after the output shaft (11) of cross-type two-stroke diesel low speed diesel engine passes base box (4) simultaneously, the big gear wheel S. A. (32) of described train of reduction gears (3) is passed base box (4) and is connected with the tailing axle (21) of described screw propeller by unitor (6) afterwards.
2. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 1, is characterized in that: the big gear wheel S. A. (32) of described train of reduction gears is provided with thrust baring (7).
3. a cross-type two-stroke diesel low speed diesel engine deceleration propelling unit, comprise cross-type two-stroke diesel low speed diesel engine (1) and screw propeller (2), it is characterized in that: the output shaft (11) of described cross-type two-stroke diesel low speed diesel engine (1) to be connected the rotating speed to reduce screw propeller (2) by train of reduction gears (3) with the tailing axle (21) of described screw propeller (2);
Described train of reduction gears (3) is arranged in casing (8) and forms reducing gearbox (9), this reducing gearbox (9) is positioned at the outside of cross-type two-stroke diesel low speed diesel engine (1), the output shaft (11) of cross-type two-stroke diesel low speed diesel engine is provided with flywheel (5), the output shaft (11) of cross-type two-stroke diesel low speed diesel engine is connected with the miniature gears S. A. (31) of train of reduction gears (3) simultaneously, the big gear wheel S. A. (32) of described train of reduction gears (3) is passed casing (8) and is connected with the tailing axle (21) of described screw propeller by unitor (6) afterwards.
4. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 3, is characterized in that: the big gear wheel S. A. (32) of described train of reduction gears is provided with thrust baring (7).
5. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 3, is characterized in that: be connected by high resiliency unitor (10) between the output shaft (11) of described cross-type two-stroke diesel low speed diesel engine and the miniature gears S. A. (31) of described train of reduction gears (3).
6. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 3, is characterized in that: described reducing gearbox (9) is for having the reducing gearbox of clutch function.
7. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 6, is characterized in that: described reducing gearbox (9) is for having reducing gearbox that is suitable, car-backing function.
8. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 3, is characterized in that: have one group of additional shaft generator of equipment gear in described reducing gearbox (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053119.5A CN103803048B (en) | 2014-02-17 | 2014-02-17 | Cross-type two-stroke diesel low speed diesel engine deceleration propelling unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053119.5A CN103803048B (en) | 2014-02-17 | 2014-02-17 | Cross-type two-stroke diesel low speed diesel engine deceleration propelling unit |
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| CN103803048A CN103803048A (en) | 2014-05-21 |
| CN103803048B true CN103803048B (en) | 2016-04-20 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713328A (en) * | 2005-10-05 | 2010-05-26 | 曼狄赛尔公司 | Vessel propulsion system |
| CN202879782U (en) * | 2012-09-21 | 2013-04-17 | 中国船舶重工集团公司第七一一研究所 | Hybrid power system of ship |
| CN103192976A (en) * | 2013-03-19 | 2013-07-10 | 苏州船用动力系统股份有限公司 | Adjustable pitch type rudder propeller device |
| CN103419918A (en) * | 2013-08-14 | 2013-12-04 | 鲍小福 | Design scheme of energy regeneration and recovery technology |
| CN203864988U (en) * | 2014-02-17 | 2014-10-08 | 陈卫文 | Speed reduction propulsion device of crosshead type two-stroke low-speed diesel engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8795008B2 (en) * | 2011-04-06 | 2014-08-05 | Twin Disc, Inc. | Two-into-two or one hybrid power device for a marine vehicle |
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2014
- 2014-02-17 CN CN201410053119.5A patent/CN103803048B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713328A (en) * | 2005-10-05 | 2010-05-26 | 曼狄赛尔公司 | Vessel propulsion system |
| CN202879782U (en) * | 2012-09-21 | 2013-04-17 | 中国船舶重工集团公司第七一一研究所 | Hybrid power system of ship |
| CN103192976A (en) * | 2013-03-19 | 2013-07-10 | 苏州船用动力系统股份有限公司 | Adjustable pitch type rudder propeller device |
| CN103419918A (en) * | 2013-08-14 | 2013-12-04 | 鲍小福 | Design scheme of energy regeneration and recovery technology |
| CN203864988U (en) * | 2014-02-17 | 2014-10-08 | 陈卫文 | Speed reduction propulsion device of crosshead type two-stroke low-speed diesel engine |
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| CN103803048A (en) | 2014-05-21 |
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Effective date of registration: 20231201 Address after: No. 169 Linjiang Road, Binhai Entrepreneurship Center, Yinzhou District, Ningbo City, Zhejiang Province, 315100 Patentee after: Zhejiang Yangpu Diesel Engine Co.,Ltd. Address before: No. 47 Baizhang East Road, Jiangdong District, Ningbo City, Zhejiang Province, 315040 Patentee before: Chen Weiwen |