CN2887750Y - Large speed differential ship jet-propulsion device - Google Patents
Large speed differential ship jet-propulsion device Download PDFInfo
- Publication number
- CN2887750Y CN2887750Y CN 200620096469 CN200620096469U CN2887750Y CN 2887750 Y CN2887750 Y CN 2887750Y CN 200620096469 CN200620096469 CN 200620096469 CN 200620096469 U CN200620096469 U CN 200620096469U CN 2887750 Y CN2887750 Y CN 2887750Y
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- China
- Prior art keywords
- jet propulsion
- water
- speed
- water spray
- pump
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Abstract
The utility model relates to a water spray advancing device for the ships with a large differential speed in the field of ships, which comprises a main frame, a water spray advancing pump and a transmission shaft that is connected with the water spray advancing pump. The difference is that the output shaft of the main frame is connected with the transmission shaft through s slip reduction gear box. The utility model has the following beneficial effects: 1. As the slip technology has the step-less speed regulating range with a large velocity ratio from 1:1 to nearly 0:1, the slip technology can be applied to realize a large varying range of the velocity ratio toward the driving of the water spray advancing pump so as to let the ship have a higher sailing speed but also a lower sailing speed under the operating condition and then to realize the stable dead-slow sailing and increase the reliability of the water spray advancing device; 2. At the dead-slow state, the ship has the better course controlling ability and positioning ability and the control of sailing speed and course is simple and convenient so as to simplify the manipulation; 3. The structure is simple, while the basic structure of the regular water spray advancing device is kept unchanged.
Description
Technical field
The utility model relates to a kind of large speed differential marine water-jet propulsion system that uses at ship domain.
Background technology
Waterjet propulsion is a kind of special boats and ships operation propulsion mode, different with common screw propeller propulsion mode, it is not directly to produce thrust by propelling unit, advance but the antagonistic force that utilizes boost pump ejection current promotes boats and ships, and distribute and change the manipulation that jet direction realizes boats and ships by steering and reverse gear.Waterjet propulsion have vibration noise low, adapt to that the varying duty ability is strong, propulsion coefficient is high, road-holding property and dynamic positioning excellent performance, shallow draft, daily maintenance characteristic of simple comparatively.The usually main main frame of marine water-jet propulsion system, reducing gearbox, transmission shaft and water jet propulsion pump etc.
To some special ships and light boats, except that require the propelling unit vibration noise little, also require ships and light boats to have well-to-do speed range, promptly not only have higher route speed, have the very low operation operating mode speed of a ship or plane again, i.e. dead slow speed; Under the dead slow speed state, ships and light boats have good course control ability and stationkeeping ability simultaneously; The control in the control of the speed of a ship or plane and course simultaneously requires simple and convenient, and these class ships and light boats mainly adopt hydraulic efficiency jet propulsion system.In these class ships and light boats, what have requires the speed difference scope between the emergency speed and the minimum speed of a ship or plane (dead slow speed) bigger, yet, owing to be subjected to the restriction of the minimum steady speed of main frame, make that hydraulic efficiency jet propulsion system can realize the minimum speed of a ship or plane dead slow speed height that may require than operation.Dead slow speed navigation when realizing the ships and light boats operation is at the water injector place of water jet propulsion pump configuration reversing bailing bucket in the prior art, controls the direction of jet flow by the angle that changes the reversing bailing bucket, reaches the purpose of dead slow speed navigation.And, realizing the dead slow speed navigation by the reversing bailing bucket is set for the ships and light boats of the long-term dead slow speed operation of needs, jet flow can cause the damage of reversing bailing bucket, thereby influence the dead slow speed adjusting function of ships and light boats the washing away for a long time of reversing bailing bucket on the one hand, reduces the reliability that dead slow speed is navigated by water; On the other hand because the turbulent flow that the effect of reversing bailing bucket is produced also can increase the difficulty to control of ships and light boats course and positioning control.
Summary of the invention
Technical problem to be solved in the utility model is a kind of large speed differential marine water-jet propulsion system that provides at the deficiency of above-mentioned prior art existence, not only speed difference variation range is big for it, and adjusting function is stable, the serviceability height, and location and course controller performance are good.
The utility model is to address the above problem the technical scheme that is adopted to be:
Comprise main frame 1, water jet propulsion pump 4 and with water jet propulsion pump bonded assembly transmission shaft 3, its difference is to link to each other with transmission shaft by slippage reducing gearbox 2 at the mouth of main frame.
Press such scheme, described main frame 1 is automotive gas turbine or diesel engine; Described water jet propulsion pump 4 is built-in water jet propulsion pump or externally-hanging type water jet propulsion pump.
Press such scheme, described slippage reducing gearbox 2 comprises slippage device 8 and speed reducing gear pair 9, and slippage device and input shaft 7 join, and speed reducing gear pair connects with output shaft and joins.
The beneficial effects of the utility model are:
1, because having from 1: 1 to the large speed ratio near 0: 1 almost, the slippage technology do not have the joint speed adjustable range, therefore utilize the slippage technology can realize the big speed difference variation range that water jet propulsion pump drives, make ships and light boats not only have higher route speed, has the very low operation operating mode speed of a ship or plane again, can realize stable dead slow speed navigation, improve the reliability of hydraulic efficiency jet propulsion system; 2, owing to the minimizing of turbulent flow, under the dead slow speed state, ships and light boats have better course control ability and stationkeeping ability, and the control in the speed of a ship or plane and course is simple and convenient, has simplified manipulation; 3, simple in structure, kept the basic structure of conventional hydraulic efficiency jet propulsion system constant.
Description of drawings
Fig. 1 is the structural representation of facing of an embodiment of the utility model.
Fig. 2 is the part-structure scheme drawing of slippage reducing gearbox among Fig. 1.
The specific embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include main frame 1, main frame can be diesel engine, the mouth of main frame 1 connects slippage reducing gearbox 2, comprise input shaft 7, slippage device 8 and the speed reducing gear pair 9 that joins with the slippage device in the slippage reducing gearbox 2, input shaft and slippage device join, and the mouth of slippage device connects speed reducing gear pair; Slippage reducing gearbox 2 links to each other with water jet propulsion pump 4 by transmission shafting 3, and described water jet propulsion pump 4 is built-in water jet propulsion pump or externally-hanging type water jet propulsion pump; Water outlet place at water jet propulsion pump is installed on steering wheel structure 6, and configurable reversing bails 5 above water outlet simultaneously, as standby or use where necessary.
The working process of present embodiment is: in the ships and light boats navigation generally speaking, the rotating speed of main frame 1 output rotates by " fixedly reduction ratio " deceleration rear drive transmission shaft through slippage reducing gearbox 2, drive water jet propulsion pump 4 work then,, promote ships and light boats and travel forward to the afterbody jet water course.After main frame arrived the setting rotating speed, the slippage device 8 in the slippage gear case 2 was started working, and transmission shaft will have been realized the dead slow speed navigation of ships and light boats to be lower than the rotation speed operation of " fixedly reduction ratio ".Under the dead slow speed operational configuration, only need just can realize course control and positioning control by the emission direction that control steering wheel structure 6 is adjusted jet flow.
Claims (6)
1, a kind of large speed differential marine water-jet propulsion system, comprise main frame (1), water jet propulsion pump (4) and with water jet propulsion pump bonded assembly transmission shaft (3), it is characterized in that linking to each other with transmission shaft by slippage reducing gearbox (2) at the mouth of main frame.
2, by the described large speed differential marine water-jet propulsion system of claim 1, it is characterized in that described main frame (1) is automotive gas turbine or diesel engine.
3, by claim 1 or 2 described large speed differential marine water-jet propulsion systems, it is characterized in that described water jet propulsion pump (4) is built-in water jet propulsion pump or externally-hanging type water jet propulsion pump.
4, by claim 1 or 2 described large speed differential marine water-jet propulsion systems, it is characterized in that described slippage reducing gearbox (2) comprises slippage device (8) and speed reducing gear pair (9), slippage device and input shaft (7) join, and speed reducing gear pair connects with output shaft and joins.
5, by claim 1 or 2 described large speed differential marine water-jet propulsion systems, it is characterized in that being installed on steering wheel structure (6) at the water outlet place of water jet propulsion pump.
6,, it is characterized in that configuration reversing bailing bucket (5) above the water outlet of water jet propulsion pump by claim 1 or 2 described large speed differential marine water-jet propulsion systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096469 CN2887750Y (en) | 2006-04-30 | 2006-04-30 | Large speed differential ship jet-propulsion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620096469 CN2887750Y (en) | 2006-04-30 | 2006-04-30 | Large speed differential ship jet-propulsion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2887750Y true CN2887750Y (en) | 2007-04-11 |
Family
ID=38046324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620096469 Expired - Lifetime CN2887750Y (en) | 2006-04-30 | 2006-04-30 | Large speed differential ship jet-propulsion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2887750Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612738A (en) * | 2013-11-01 | 2014-03-05 | 武汉船用机械有限责任公司 | Water spray pushing device and matching method of prime motor |
| CN103612736A (en) * | 2013-11-25 | 2014-03-05 | 武汉船用机械有限责任公司 | Water-jet propulsion system with gear case |
| CN106993429A (en) * | 2016-01-22 | 2017-08-01 | 南京德朔实业有限公司 | Grass-mowing machine |
-
2006
- 2006-04-30 CN CN 200620096469 patent/CN2887750Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612738A (en) * | 2013-11-01 | 2014-03-05 | 武汉船用机械有限责任公司 | Water spray pushing device and matching method of prime motor |
| CN103612738B (en) * | 2013-11-01 | 2016-05-18 | 武汉船用机械有限责任公司 | The matching process of a kind of hydraulic jet propulsion system and prime mover |
| CN103612736A (en) * | 2013-11-25 | 2014-03-05 | 武汉船用机械有限责任公司 | Water-jet propulsion system with gear case |
| CN106993429A (en) * | 2016-01-22 | 2017-08-01 | 南京德朔实业有限公司 | Grass-mowing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070411 |
|
| EXPY | Termination of patent right or utility model |