CN203864988U - Speed reduction propulsion device of crosshead type two-stroke low-speed diesel engine - Google Patents
Speed reduction propulsion device of crosshead type two-stroke low-speed diesel engine Download PDFInfo
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- CN203864988U CN203864988U CN201420068592.6U CN201420068592U CN203864988U CN 203864988 U CN203864988 U CN 203864988U CN 201420068592 U CN201420068592 U CN 201420068592U CN 203864988 U CN203864988 U CN 203864988U
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- diesel engine
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Abstract
The utility model relates to a speed reduction propulsion device of a crosshead type two-stroke low-speed diesel engine. The speed reduction propulsion device of the crosshead type two-stroke low-speed diesel engine comprises the crosshead type two-stroke low-speed diesel engine (1) and a propeller (2) and is characterized in that an output shaft of the crosshead type two-stroke low-speed diesel engine (1) is connected with a tail shaft (21) of the propeller (2) through a speed reduction gear set (3) to reduce the rotation speed of the propeller (2). The speed reduction propulsion device overcomes the technical prejudice of technicians in the field; the output shaft of the crosshead type two-stroke low-speed diesel engine is connected with the tail shaft of the propeller through the speed reduction gear set to reduce the rotation speed of the propeller so as to improve the propulsion efficiency, which replaces the mode that the rotation speed of a traditional crosshead type two-stroke low-speed diesel engine is reduced through an ultra long stroke to improve the propulsion efficiency, thus, the size and the weight of the two-stroke low-speed engine with the same output rotation speed and the same power are greatly reduced, vibration is reduced, and moreover the cost of the crosshead type two-stroke low-speed diesel engine is lower than that of the two-stroke low-speed diesel engine with the same rotation speed.
Description
Technical field
The utility model 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 both.High-power two-stroke low speed diesel engine is widely used on the large-scale ocean range vessels such as bulge carrier, oil tanker, box ship, as the primary mover in propelling unit, uses.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, larger its propulsion coefficient of screw propeller is higher, but screw propeller is done the rotating speed that a large prerequisite is diesel engine and must will be turned to 50～60.And traditional cross-type two-stroke diesel low speed diesel engine itself is because rotating speed is low, traditional concept is all thought not to be needed to slow down with gear case, adopt gear case to increase on the contrary cost and energy consumption, but screw propeller tailing axle is directly connected with diesel engine mouth, therefore how many diesel engines turns, and how many screw propellers just turns.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 that shaft generator is installed, for the change speed gear box that the object that makes two-stroke low speed diesel engine reach 50Hz or 60Hz frequency arranges, the object that gear case is set not is for diesel engine output speed is slowed down.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 the research and development of people to this technical field.
Just, because there is aforementioned techniques prejudice, for propeller propulsive efficiency is improved, technical personnel considers the rotating speed of cross-type two-stroke diesel low speed diesel engine further to decline now, yet when 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 the stroke of diesel engine is lengthened, and diesel engine volume is very large like this, and weight is very heavy, and vibrations increase, manufacture difficulty is large, cost is just very high.Concerning manufacturing link, just become energy-consuming product like this, be also unfavorable for energy-conserving and environment-protective manufacture.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, to provide a kind of also can effectively fall slow-revving two-stroke low speed diesel engine deceleration propelling unit at the stroke without 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 rotating speed is more cheap equally 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 is connected to reduce the rotating speed of screw propeller by train of reduction gears and 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 the output shaft of cross-type two-stroke diesel low speed diesel engine passes base box simultaneously, flywheel is installed, the big gear wheel S. A. of described train of reduction gears is connected with the tailing axle of described screw propeller by unitor after passing 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 on formation reducing gearbox in casing, this reducing gearbox is positioned at the outside of cross-type two-stroke diesel low speed diesel engine, on the output shaft of cross-type two-stroke diesel low speed diesel engine, flywheel is installed, 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 simultaneously, and the big gear wheel S. A. of described train of reduction gears is connected with the tailing axle of described screw propeller by unitor after passing casing.
The big gear wheel S. A. of above-mentioned train of reduction gears is provided with thrust baring.
Between the miniature gears S. A. of the output shaft of above-mentioned cross-type two-stroke diesel low speed diesel engine and described train of reduction gears, by high resiliency unitor, be connected.
Above-mentioned reducing gearbox is the reducing gearbox with clutch function.
Above-mentioned reducing gearbox is to have reducing gearbox suitable, car-backing function.
In above-mentioned reducing gearbox, there is 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 of slowing down with gear case of not needing of cross-type two-stroke diesel low speed diesel engine, output shaft by cross-type two-stroke diesel low speed diesel engine is connected to reduce screw propeller with the tailing axle of screw propeller rotating speed by train of reduction gears improves propulsion coefficient, replace traditional cross-type two-stroke diesel low speed diesel engine originally with ultra-long-stroke, to reduce rotating speed and improve propelling effect, make like this two-stroke low speed machine volume and weight of same output speed and power greatly reduce and alleviate, 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 30% weight, can be country and saved 30% the cost of raw material and the industrial discharge that reduces 30%, simultaneously, also saved cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the utility model;
Fig. 2 is the structural representation of second embodiment of the utility model;
Fig. 3 is the structural representation of the 3rd embodiment of the utility model;
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figure 1, be first embodiment of the present utility model.
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 to reduce the rotating speed of screw propeller 2 by train of reduction gears 3 and the tailing axle 21 of screw propeller 2.
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, the big gear wheel S. A. 32 of train of reduction gears 3 is connected with the tailing axle 21 of described screw propeller by unitor 6 after passing base box 4, and 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 utility model.
Train of reduction gears 3 in the present embodiment is arranged on the interior formation reducing gearbox 9 of casing 8, this reducing gearbox 9 is positioned at the outside of cross-type two-stroke diesel low speed diesel engine 1, on the output shaft 11 of cross-type two-stroke diesel low speed diesel engine, flywheel 5 is installed, 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, the big gear wheel S. A. 32 of train of reduction gears 3 is connected with the tailing axle 21 of screw propeller by unitor 6 after passing casing 9, and big gear wheel S. A. 32 is the output shaft of this train of reduction gears.The big gear wheel S. A. 21 of train of reduction gears is provided with thrust baring 7.
As shown in Figure 3, be the 3rd embodiment of the present utility model.
The difference of the present embodiment and second embodiment is: between the output shaft 11 of cross-type two-stroke diesel low speed diesel engine and the miniature gears S. A. 31 of described train of reduction gears 3, by high resiliency unitor 10, be connected.
Reducing gearbox 9 can be suitable for having, the reducing gearbox of car-backing function.Reducing gearbox 9 can also be for having the reducing gearbox of clutch function.Reducing gearbox 9 is interior can also have one group of additional shaft generator of equipment gear.
This deceleration propelling unit overcomes those skilled in the art and thinks the rotating speed lower technology prejudice of slowing down with gear case of not needing of cross-type two-stroke diesel low speed diesel engine, output shaft by cross-type two-stroke diesel low speed diesel engine is connected to reduce screw propeller with the tailing axle of screw propeller rotating speed by train of reduction gears improves propulsion coefficient, replace traditional cross-type two-stroke diesel low speed diesel engine originally with ultra-long-stroke, to reduce rotating speed and improve propelling effect, make like this two-stroke low speed machine volume and weight of same output speed and power greatly reduce and alleviate, 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 30% weight, can be country and saved 30% the cost of raw material and the industrial discharge that reduces 30%, simultaneously, also saved cost.
Claims (9)
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) is connected to reduce the rotating speed of screw propeller (2) by train of reduction gears (3) with the tailing axle (21) of described screw propeller (2).
2. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 1, it is characterized in that: described train of reduction gears (3) is installed in the base box (4) of diesel engine base afterbody, the output shaft of described cross-type two-stroke diesel low speed diesel engine (11) is as the miniature gears S. A. (31) of described 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, the big gear wheel S. A. (32) of described train of reduction gears (3) is connected with the tailing axle (21) of described screw propeller by unitor (6) after passing base box (4).
3. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 2, is characterized in that: the big gear wheel S. A. (32) of described train of reduction gears is provided with thrust baring (7).
4. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 1, it is characterized in that: described train of reduction gears (3) is arranged on formation reducing gearbox (9) in casing (8), this reducing gearbox (9) is positioned at the outside of cross-type two-stroke diesel low speed diesel engine (1), flywheel (5) is installed on the output shaft of cross-type two-stroke diesel low speed diesel engine (11), 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 connected with the tailing axle (21) of described screw propeller by unitor (6) after passing casing (9).
5. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 4, is characterized in that: the big gear wheel S. A. (21) of described train of reduction gears is provided with thrust baring (7).
6. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 4, is characterized in that: between the miniature gears S. A. (31) of the output shaft of described cross-type two-stroke diesel low speed diesel engine (11) and described train of reduction gears (3), by high resiliency unitor (10), be connected.
7. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 4, is characterized in that: described reducing gearbox (9) is for having the reducing gearbox of clutch function.
8. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 7, is characterized in that: described reducing gearbox (9) is for having reducing gearbox suitable, car-backing function.
9. cross-type two-stroke diesel low speed diesel engine deceleration propelling unit according to claim 4, is characterized in that: in described reducing gearbox (9), have one group of additional shaft generator of equipment gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068592.6U CN203864988U (en) | 2014-02-17 | 2014-02-17 | Speed reduction propulsion device of crosshead type two-stroke low-speed diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068592.6U CN203864988U (en) | 2014-02-17 | 2014-02-17 | Speed reduction propulsion device of crosshead type two-stroke low-speed diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203864988U true CN203864988U (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068592.6U Withdrawn - After Issue CN203864988U (en) | 2014-02-17 | 2014-02-17 | Speed reduction propulsion device of crosshead type two-stroke low-speed diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203864988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803048A (en) * | 2014-02-17 | 2014-05-21 | 陈卫文 | Speed reduction propulsion plant of crosshead type two-stroke low-speed diesel engine |
-
2014
- 2014-02-17 CN CN201420068592.6U patent/CN203864988U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803048A (en) * | 2014-02-17 | 2014-05-21 | 陈卫文 | Speed reduction propulsion plant of crosshead type two-stroke low-speed diesel engine |
| CN103803048B (en) * | 2014-02-17 | 2016-04-20 | 陈卫文 | Cross-type two-stroke diesel low speed diesel engine deceleration propelling unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141008 Effective date of abandoning: 20160420 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |